American football positions
Encyclopedia
In American football
American football
American football is a sport played between two teams of eleven with the objective of scoring points by advancing the ball into the opposing team's end zone. Known in the United States simply as football, it may also be referred to informally as gridiron football. The ball can be advanced by...

, each team has eleven players on the field at one time. Because the rules allow unlimited substitution between plays, the types of players on the field for each team differ depending on the situation. At the college
College football
College football refers to American football played by teams of student athletes fielded by American universities, colleges, and military academies, or Canadian football played by teams of student athletes fielded by Canadian universities...

 and National Football League
National Football League
The National Football League is the highest level of professional American football in the United States, and is considered the top professional American football league in the world. It was formed by eleven teams in 1920 as the American Professional Football Association, with the league changing...

 levels, most play only offense
Offense (sports)
In sports, offense or offence , also known as attack, is the action of attacking or engaging an opposing team with the objective of scoring points or goals...

 or only defense
Defense (sport)
In many team sports, defense or defence is the action of preventing an opponent from scoring. The term may also refer to the tactics involved in defense, or a sub-team whose primary responsibility is defense...

, with "two-way" players being a thing of the past.

Offense

In American football, the offense is the side which is in possession of the ball. It is their job to advance the ball towards the opponent's end zone to score points. Broadly speaking, the eleven players of the offense are broken into two groups: the five offensive linemen, whose primary job is to block
Blocking (American football)
In American football, blocking is a legal move occurring when one player obstructs another player's path with his body. The purpose of blocking is to prevent defensive players tackling the ball carrier, or to protect the quarterback while attempting to pass or hand-off the ball...

, and the six backs and receivers whose primary job is advance the ball by means of either running with the ball or passing
Forward pass
In several forms of football a forward pass is when the ball is thrown in the direction that the offensive team is trying to move, towards the defensive team's goal line...

 it. The backs and receivers are also commonly known as skill position
Skill position
Skill positions in football are the positions that are most responsible for causing or preventing points from being scored. The skill positions are:*Quarterback*Running back, particularly halfback*Wide receiver*Cornerback*Safety*Return specialist...

 players or as eligible ball carriers (offensive linemen are not normally eligible to advance the ball during play).

The organization of the offense is strictly mandated by the rules, there must always be exactly seven players on the line of scrimmage
Line of scrimmage
In American and Canadian football a line of scrimmage is an imaginary transverse line beyond which a team cannot cross until the next play has begun...

 and exactly four players (known collectively as "backs") behind it on every play. The only players eligible to handle the ball during a normal play are the four backs and the two players on the end of the line. The remaining five players (known as "interior linemen") are considered "ineligible", and may only block. Within these strictures, however, creative coaches have developed a wide array of offensive formations
Formation (American football)
A formation in American football refers to the position players line up in before the start of a down. There are both offensive and defensive formations and there are many formations in both categories.-Offense:...

 to take advantage of different player skills and game situations.

The following positions are standard in nearly every game, though different teams will use different arrangements of them.

Offensive line

The offensive line is primarily responsible for blocking. During normal play, offensive linemen do not handle the ball, unless the ball is fumble
Fumble
A fumble in American and Canadian football occurs when a player, who has possession and control of the ball loses it before being downed or scoring. By rule, it is any act other than passing, kicking or successful handing that results in loss of player possession...

d by a ball carrier, or when a player who is normally an offensive lineman takes a different position on the field. The offensive line consists of:

Center
Center (American football)
Center is a position in American football and Canadian football . The center is the innermost lineman of the offensive line on a football team's offense...

 (C)
The center is the player who begins the play from scrimmage
Play from scrimmage
A play from scrimmage is the activity of the games of Canadian football and American football during which one team tries to advance the ball or to score, and the other team tries to stop them or take the ball away. Once a play is over, and before the next play starts, the football is considered...

 by snapping the ball to a back. As the name implies, the center usually plays in the middle of the offensive line, though some teams may employ an unbalanced line where the center is offset to one side or another. Like all offensive lineman, the center has the responsibility to block defensive players. The center often also has the responsibility to call out blocking assignments and make last second adjustments depending on the defensive alignment.


Offensive guard (G)
Two guards line up directly on either side of the center. Like all interior linemen, their function is to block on both running and passing plays. On some plays, rather than blocking straight ahead, a guard will "pull", whereby the guard comes out of his position in line to lead block for a ball carrier, on plays known as "traps
Trap run
In American football, a trap play, or trap run, is a run consisting of a defender on the line of scrimmage getting trap blocked by an offensive lineman or back from the opposite side of the ball...

" (for inside runs), or "sweeps
Sweep (American football)
A sweep is a running play in American football where the running back takes a pitch or handoff from the quarterback and starts running parallel to the line of scrimmage, allowing for the offensive linemen and fullback to get in front of him to block defenders before he turns upfield.- QB sweep :A...

" (for outside runs), or "screens
Screen pass
A screen pass is a type of play in American football. During a screen pass, a number of things happen concurrently in order to fool the defense into thinking a long pass is being thrown, when in fact the pass is merely a short one, just beyond the defensive linemen. Screens are usually deployed...

" (for passing plays)


Offensive tackle (T)
Two tackles play outside of the guards. Their role is primarily to block on both running and passing plays. The area from one tackle to the other is an area of "close line play" in which blocks from behind, which are prohibited elsewhere on the field, are allowed. For a right-handed quarterback, the left tackle is charged with protecting the quarterback from being hit from behind (known as his "blind side"), and this is usually the most skilled player on the offensive line. Like a guard, the tackle may have to "pull," on a running play, when there is a tight end on his side.

Backs and receivers

The six backs and receivers are those that line up outside or behind the offensive line. There are four main positions in this set of players:

Quarterback
Quarterback
Quarterback is a position in American and Canadian football. Quarterbacks are members of the offensive team and line up directly behind the offensive line...

 (QB)
The quarterback is the player who receives the ball from the center to start the play. The most important position on the offensive side of the ball, the quarterback is usually responsible for receiving the play from the coaches on the sideline and communicating the play to the other offensive players in the huddle
Huddle
In sport, a huddle is when a team gathers together, usually in a tight circle, to strategise, motivate or celebrate. It is a popular strategy for keeping opponents insulated from sensitive information, and acts as a form of insulation when the level of noise in the venue is such that normal...

. The quarterback may need to make changes to the play at the line of scrimmage (known as an "audible"), depending on the defensive alignment. At the start of the play, the quarterback may be lined up in one of two positions. If they are positioned directly in contact with the center, and receive the ball via direct hand-to-hand pass, they are said to be "under center". If they are lined up some distance behind the center, they are said to be "in the shotgun
Shotgun formation
The shotgun formation is a formation used by the offensive team in American and Canadian football. This formation is used mainly for passing plays, although some teams use it as their base formation. In the shotgun, instead of the quarterback receiving the snap from center at the line of scrimmage,...

". Upon receiving the snap, the quarterback has three basic options to advance the ball. They may run the ball themselves, they may hand it to another eligible ball carrier to run with it, or they may execute a forward pass
Forward pass
In several forms of football a forward pass is when the ball is thrown in the direction that the offensive team is trying to move, towards the defensive team's goal line...

 to a player downfield.


Running back
Running back
A running back is a gridiron football position, who is typically lined up in the offensive backfield. The primary roles of a running back are to receive handoffs from the quarterback for a rushing play, to catch passes from out of the backfield, and to block.There are usually one or two running...

 (RB)
Running backs are players who line up behind the offensive line, who are in position to receive the ball from the quarterback and execute a rushing play. Anywhere from one to three running backs may be utilized on a play (or even none, a situation typically known as an "empty backfield"). Depending on where they line up, and what role they have, running backs come in several varieties. The "tailback" (or sometimes the "halfback", though this term is somewhat archaic) is often a team's primary ball carrier on rushing plays. They may also catch passes, often acting as a "checkdown" or "safety valve" when all other receivers on a pass play are covered. The "fullback" is often larger and stronger than the tailback, and acts primarily as a blocker, though the fullback may also be used for catching passes or for rushing as a tailback does. Fullbacks often line up closer to the line of scrimmage than tailbacks do, so they may block for them. A "wingback" or a "slotback" is a term for a running back who lines up behind the line of scrimmage outside the tackle or tight end on the side where positioned. Slotbacks are usually only found in certain offensive alignments, such as the flexbone formation
Flexbone formation
The flexbone formation is an offensive formation in American football that uses a quarterback, five offensive linemen, three running backs, and varying numbers of tight ends and wide receivers. The flexbone formation is a predominant running formation derived from the wishbone formation and it...

. A similar position, known as the H-back
H-back
An H-Back is an offensive position in American football, and is also known as power back. The position is a hybrid of a fullback and a tight end. The position was made notable in the NFL by the Washington Redskins under head coach Joe Gibbs who ran a two tight end system...

, is actually considered a modification of the normal tight end position (see below).


Wide receiver
Wide receiver
A wide receiver is an offensive position in American and Canadian football, and is the key player in most of the passing plays. Only players in the backfield or the ends on the line are eligible to catch a forward pass. The two players who begin play at the ends of the offensive line are eligible...

 (WR)
The wide receivers are pass-catching specialists. Their main job is to run pass routes and get open for a pass, although they are occasionally called on to block. Wide receivers generally line up split "wide" near the sidelines at the start of the play. Wide receivers, like running backs, come in different varieties depending on exactly where they line up. A wide receiver which is directly on the line of scrimmage is called a "split end", and is counted among the seven required players on the line of scrimmage. A wide receiver which lines up behind the line (and thus counts as one of the four backs) is called the "flanker". A wide receiver which lines up between the outermost wide receiver and the offensive line is said to be "in the slot" and is called the "slot receiver".


Tight end
Tight end
The tight end is a position in American football on the offense. The tight end is often seen as a hybrid position with the characteristics and roles of both an offensive lineman and a wide receiver. Like offensive linemen, they are usually lined up on the offensive line and are large enough to be...

 (TE)
Tight ends play on either side of, and directly next to, the tackles. Tight ends are considered a hybrid player, something between a wide receiver and an offensive lineman. Because they play next to the other offensive lineman, they are frequently called on to block, especially on running plays. However, because they are eligible receivers, they may also catch passes. The position known as the H-back
H-back
An H-Back is an offensive position in American football, and is also known as power back. The position is a hybrid of a fullback and a tight end. The position was made notable in the NFL by the Washington Redskins under head coach Joe Gibbs who ran a two tight end system...

 is a tight end who lines up behind the line of scrimmage, and is thus counted as one of the four "backs", but otherwise his role is similar to that of other tight ends.


Depending on the style of offense the coaches have designed, the game situation, and the relative skill sets of the players, teams may run formations which contain any number of running backs, wide receivers, and tight ends, so long as the mandated "four backs and seven on the line" rule is followed. For many years, the standard set consisted of the quarterback, two running backs (a tailback/halfback and a fullback), two wide receivers (a flanker and a split end) and a tight end. Modern teams show a wide variety of formations, from a "full house" formation with three running backs, two tight ends, and no wide receivers, to "spread" formations featuring four or five wide receivers, sometimes without any running backs.

Defense

The defensive team or defense is the team that begins a play from scrimmage
Play from scrimmage
A play from scrimmage is the activity of the games of Canadian football and American football during which one team tries to advance the ball or to score, and the other team tries to stop them or take the ball away. Once a play is over, and before the next play starts, the football is considered...

 not in possession of the ball. The object of the defensive team is to prevent the other team from scoring. The defense accomplishes this by forcing the offense to turn the ball over, either by preventing them from achieving a first down
Down (football)
A down is a period in which a play transpires in American and Canadian football.-Description:A down begins with a snap or free kick , and ends when the ball or the player in possession of it is declared down by an official, a team scores, or the ball or player in possession of it leaves the field...

 and forcing a punt, or by forcing the offense to fumble
Fumble
A fumble in American and Canadian football occurs when a player, who has possession and control of the ball loses it before being downed or scoring. By rule, it is any act other than passing, kicking or successful handing that results in loss of player possession...

 or throw an interception.

Unlike the offensive team, the rules do not restrict the defensive team into certain positions. A defensive player may line up anywhere on his side of the line of scrimmage and perform any legal action. Over time, however, defensive roles have become defined into three main sets of players, and several individual positions.

Defensive line

Like their offensive counterparts, defensive linemen line up directly on the line of scrimmage, close to the ball. There are two positions usually considered part of the defensive line

Defensive tackle (DT);
Sometimes called a defensive guard, defensive tackles play at the center of the defensive line. Their function is to rush the passer (if they can get past the offensive linemen blocking them), and stop running plays directed at the middle of the line of scrimmage. A defensive tackle who lines up directly across from the ball (and therefore is almost nose-to-nose with the offense's center) is often called a nose tackle or nose guard. The nose tackle is most common in the 3-4 defense and the quarter defense. Most defensive sets have from one to two defensive tackles. Sometimes, but not often, a team will employ three defensive tackles.


Defensive end
Defensive end
Defensive end is the name of a defensive position in the sport of American and Canadian football.This position has designated the players at each end of the defensive line, but changes in formations have substantially changed how the position is played over the years...

 (DE)
The two defensive ends play next to the defensive tackles, at the edges of the defensive line. Their function is to attack the passer or stop offensive runs to the outer edges of the line of scrimmage (most often referred to as "containment"). The faster of the two is usually placed on the right side of the defensive line (quarterback's left) because that is a right-handed quarterback
Quarterback
Quarterback is a position in American and Canadian football. Quarterbacks are members of the offensive team and line up directly behind the offensive line...

's blind side.

Linebackers

Linebacker
Linebacker
A linebacker is a position in American football that was invented by football coach Fielding H. Yost of the University of Michigan. Linebackers are members of the defensive team, and line up approximately three to five yards behind the line of scrimmage, behind the defensive linemen...

s play behind the defensive line and perform various duties depending on the situation, including rushing the passer, covering receivers, and defending against the run.

Middle linebacker (MLB)
Sometimes called the "inside linebacker" (especially in a 3-4 defense
3-4 defense
In American football, the 3–4 defense is a defensive alignment consisting of three down linemen and four linebackers.The 3–4 defense declined in popularity over the years, but has found renewed use by modern professional and college football teams. The 3–4 defense is so named because it involves 3...

), and known colloquially as the "Mike" linebacker, the middle linebacker is often known as the "quarterback of the defense", as they are frequently the primary defensive play callers and must react to a wide variety of situations. Middle linebackers must be capable of stopping running backs who make it past the defensive line, covering pass plays over the middle, and rushing the quarterback on blitz plays
Blitz (American football)
In American football or Canadian football, a blitz or red dog is when players on or behind the line of scrimmage during a play, are sent across the scrimmage line to the offensive side to try to tackle the quarterback or disrupt his pass attempt...

.


Outside linebacker (OLB)
Outside linebackers are given different names depending on their role and the philosophy of the team. Some teams keep their outside linebackers on the same side of the field at all times, and thus they are known as "right outside" (ROLB) and "left outside" (LOLB). Some teams define them by their role; as playing either "strongside (SLB) or "weakside" (WLB). The strongside, or "Sam", linebacker lines up on the same side as the offensive tight end
Tight end
The tight end is a position in American football on the offense. The tight end is often seen as a hybrid position with the characteristics and roles of both an offensive lineman and a wide receiver. Like offensive linemen, they are usually lined up on the offensive line and are large enough to be...

 and often is responsible for covering the tight end or running back on pass plays. The weakside, or "Will", linebacker lines up on the side of the offensive line without a tight end, and is often used to rush, or blitz
Blitz (American football)
In American football or Canadian football, a blitz or red dog is when players on or behind the line of scrimmage during a play, are sent across the scrimmage line to the offensive side to try to tackle the quarterback or disrupt his pass attempt...

 the quarterback, or may need to cover a running back on pass plays.

Defensive backs

Defensive back
Defensive back
In American football and Canadian football, defensive backs are the players on the defensive team who take positions somewhat back from the line of scrimmage; they are distinguished from the defensive line players and linebackers, who take positions directly behind or close to the line of...

s, also known as the "secondary", play either behind the linebackers or set to the outside, near the sidelines. Defensive backs are primarily used to defend against pass plays, by covering wide receivers and tight ends to prevent them from catching the ball, or to attempt to intercept the pass from the quarterback. Defensive backs also act as the last line of defense on running plays, and need to be able to make open field tackles, especially when the ball carrier has gotten past the other defenders. A normal complement of defensive backs includes two cornerbacks and two safeties, though specialty defensive backs (nickelbacks and dimebacks) can be brought in in place of linebackers and defensive lineman, when there is need to cover additional pass receivers.

Cornerback
Cornerback
A cornerback is a member of the defensive backfield or secondary in American and Canadian football. Cornerbacks cover receivers, to defend against pass offenses and make tackles. Other members of the defensive backfield include the safeties and occasionally linebackers. The cornerback position...

 (CB)
Typically two players who primarily cover the wide receivers. Cornerbacks attempt to prevent successful quarterback passes by either swatting the airborne ball away from the receiver or by catching the pass themselves
Interception (football)
An interception, intercept or pick is a move in many forms of football, including Canadian and American football, as well as rugby league, rugby union, Australian rules football and Gaelic football, which involves a pass, either by foot or hand, being caught by an opposition player, who usually...

. In rushing situations, their job is to contain the runner, either by directing him back to the middle of the field to be tackled, by tackling him themselves, or by forcing him out of bounds.


Safety (S)
The safeties are the last line of defense (farthest from the line of scrimmage) and usually help the corners with deep-pass coverage. The strong safety (SS) is usually the larger and stronger of the two, providing extra protection against run plays by standing closer to the line of scrimmage, usually on the strong (tight end) side of the field. The free safety (FS) is usually the smaller and faster of the two, and is usually the deepest player on the defense, providing help on long pass plays.


Nickelback
Nickelback (position)
In American football, a nickelback is a cornerback who serves as the fifth defensive back on the defense. A base defense contains four defensive backs, consisting of two cornerbacks, and two safeties. Adding an extra back makes five, hence the term "nickel", which is the name for 5-cent coins in...

 and Dimeback
Dimeback
In American football, a dimeback is a cornerback who serves as the sixth defensive back on defense. The third cornerback on defense is known as a nickelback. The dimeback position is essentially relegated to backup cornerbacks who do not play starting cornerback positions...

In certain formations, the defense may remove a linebacker or a defensive lineman to bring in extra pass coverage in the form of extra defensive backs. A formation with five defensive backs is often called a "nickel" formation, and the fifth (extra) defensive back is called a "nickelback" after the U.S. nickel
Nickel (United States coin)
The nickel is a five-cent coin, representing a unit of currency equaling five hundredths of one United States dollar. A later-produced Canadian nickel five-cent coin was also called by the same name....

 coin, a five-cent piece. By extension, a formation with six defensive backs is called a "dime package", a dime being the next coin more valuable than a nickel. Rarely, a team may employ seven or eight defensive backs on certain plays.


Defensive formations are often known by a numerical code indicating the number of players at each position. The two most common formations are the 3–4 defense and the 4–3 defense, where the first number refers to the number of defensive linemen, and the second number refers to the number of linebackers (the number of defensive backs can be inferred, since there should be eleven players on the field.) Thus, 3–4 defense will consist of three defensive linemen (usually a nose tackle and two defensive ends), four linebackers, and four defensive backs (two cornerbacks, a strong safety, and a free safety).

Special teams

"Special teams" redirects here. For the ice hockey definition of "special teams," see powerplay
Powerplay
"Power play" is a sporting term used in various games.*In ice hockey, a team is said to be on a power play when at least one opposing player is serving a penalty, and the team has a numerical advantage on the ice...

 and short handed.


Special teams are units that are on the field during kicking plays. While many players who appear on offensive or defensive squads also play similar roles on special teams (offensive linemen to block, or defensive players to tackle) there are some specialist roles which are unique to the kicking game.

Kicker
Placekicker
Placekicker, or simply kicker , is the title of the player in American and Canadian football who is responsible for the kicking duties of field goals, extra points...

 (K)
Also called the "placekicker", he handles kickoffs
Kickoff (American football)
A kickoff is a method of starting a drive in American football and Canadian football. Typically, a kickoff consists of one team – the "kicking team" – kicking the ball to the opposing team – the "receiving team"...

 and field goal
Field goal (football)
A field goal in American football and Canadian football is a goal that may be scored during general play . Field goals may be scored by a placekick or the now practically extinct drop kick.The drop kick fell out of favor in 1934 when the shape of the ball was changed...

 attempts. Both situations require the kicker to kick the ball off of the ground, either from the hands of a "holder" or off of a "tee". Some teams will employ two kickers, one for each role. Most however use a single kicker for both jobs, and rarely, the same player may also punt
Punt
Punt may refer to:In boats:*Punt , a flat-bottomed boat with a square-cut bow developed on the River Thames*Norfolk Punt, a type of racing dinghy developed in Norfolk*Cable ferry, known as a punt in Australian EnglishIn people:...

.


Holder
Holder (American football)
In American football the holder is the player who receives the snap during field goal and extra point attempts made by place kick. The holder is usually positioned between seven and eight yards behind the line of scrimmage. The holder kneels down and places the hand farthest from the line of...

 (H)
Usually positioned 7-8 yards from the line of scrimmage
Line of scrimmage
In American and Canadian football a line of scrimmage is an imaginary transverse line beyond which a team cannot cross until the next play has begun...

, he holds the ball for the placekicker to kick. The holder is often a backup quarterback or a punter.


Long snapper
Long snapper
In American football and Canadian football, the term long snapper refers to a player who is a specialized center during punts, field goals, and extra point attempts. His job is to snap the ball as quickly and accurately as possible....

 (LS)
A specialized center who snaps the ball directly to the holder or punter. This player is usually distinct from the regular center, as the ball often has to be snapped much farther back on kicking plays.


Punter
Punter (football position)
A punter in American or Canadian football is a special teams player who receives the snapped ball directly from the line of scrimmage and then punts the football to the opposing team so as to limit any field position advantage. This generally happens on a fourth down in American football and a...

 (P)
Punting requires the player to drop the ball from their hand and kick it from the air. It is done to relinquish possession to the defensive team. Punting is usually only done on fourth down.


Punt returner
Punt returner
Punt returner is a position on special teams in American football.-Description:The role of a punt returner is to catch the ball after it is punted and to give his team good field position by returning it. Before catching the punted ball, the returner must assess the situation on the field while...

 (PR) and Kick returner
Kick returner
In American and Canadian football, a kick returner is the player on special teams who is primarily responsible to catch kickoffs and attempts to return them in the opposite direction. If the ball is kicked into his own endzone, he must assess the situation on the field while the ball is in the...

 (KR)
Returners are responsible for catching kicked balls (either on kickoffs or punts) and running the ball back. These are usually the fastest players on a team. Teams may use the same player for both positions, or may have a separate returner for punts and for kickoffs.


Upback
A blocking back who lines up approximately 1-3 yards behind the line of scrimmage in punting situations. Because the punter plays so far back, the upback frequently makes the line calls and calls for the snap to be received by the punter. Their primary role is to act as the last line of defense for the punter. Upbacks may occasionally receive the snap instead of the punter on fake punts.


Gunner
Gunner (American football)
In American football, a gunner, also known as a shooter or kamikaze, is a player on kickoffs and punts who specializes in running down the sideline very quickly in an attempt to tackle the kick returner or the punt returner...

A player on kickoffs and punts who specializes in running down the field very quickly in an attempt to tackle the kick returner or the punt returner. They usually line up near the sidelines where there will be fewer blockers and thus allow them to get down the field quickly.

See also

  • American football strategy
    American football strategy
    American football strategy concerns the deployment of offensive, defensive, and special teams players in American football.-Offensive strategy:The goal of offensive strategy is to score points...

  • Glossary of American football
    Glossary of American football
    The following terms are used in American football and Canadian football, but see also the glossary of Canadian football.-0-9: A formation of the 4-3 defense featuring several dramatic shifts of personnel...

  • Rugby league positions
    Rugby league positions
    A rugby league football team consists of thirteen players on the field, with four substitutes on the bench. Players are divided into two general categories: "forwards" and "backs"....

  • Rugby union positions
    Rugby union positions
    In the game rugby union, there are fifteen players on each team, comprising eight forwards and seven backs . Depending upon the competition, there may be up to eight replacement players. Early games consisted primarily of forwards that attacked plus a handful of "tends" that played back in defence...


External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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