Andrew Warren Katzenmoyer (born December 2, 1977) is a former professional 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...

 player and the first Butkus Award-winning middle linebacker to play for the Ohio State Buckeyes

Ohio State Buckeyes football

The Ohio State Buckeyes football team is an intercollegiate varsity sports team of The Ohio State University. The team is a member of the Big Ten Conference of the NCAA, playing at the Division I Football Bowl Subdivision, formerly Division I-A, level. The team nickname is derived from the state...

. Katzenmoyer wore number 45 at Ohio State, a number which was previously worn by two time Heisman trophy winner Archie Griffin

Archie Griffin

Archie Mason Griffin is a former American football running back. Griffin played seven seasons in the NFL with the Cincinnati Bengals. He is college football's only two-time Heisman Trophy winner...

.

Katzenmoyer was selected by the New England Patriots

New England Patriots

The New England Patriots, commonly called the "Pats", are a professional football team based in the Greater Boston area, playing their home games in the town of Foxborough, Massachusetts at Gillette Stadium. The team is part of the East Division of the American Football Conference in the National...

 in the first round of the 1999 NFL Draft

1999 NFL Draft

The 1999 NFL Draft was the procedure by which National Football League teams selected amateur college football players. It is officially known as the NFL Annual Player Selection Meeting. The draft was held April 17-18, 1999...

. He suffered a neck injury during his first season with the Patriots that eventually forced him to have surgery and miss half of the 2000 season

2000 New England Patriots season

The 2000 New England Patriots season was the 31st season for the team in the National Football League and 41st season overall. They finished with a 5–11 record and in last place in the division....

. During training camp in 2001, Katzenmoyer walked out citing concern about a feeling in his neck. He was placed on injured reserve

Injured reserve

The injured reserve list is a list of reserved players who are injured and unable to play for a period of time, used most prominently in the National Hockey League and National Football League . It is used because these leagues have a maximum number of players on the team roster, so placing a...

 for the remainder of the season. The Patriots released Katzenmoyer before the beginning of the 2002 season

2002 NFL season

The 2002 NFL season was the 83rd regular season of the National Football League.The league went back to an even number of teams, expanding to 32 teams with the addition of the Houston Texans. The clubs were then realigned into eight divisions, four teams in each...

, and he has not returned to professional football.

Katzenmoyer is now owner of Katzenmoyer Performance, a personal training studio in Westerville, Ohio.