Offseason

• October 8, 1957: Steve Bilko
  Steve Bilko
  Stephen Thomas Bilko , was an American professional baseball player known for his home run hitting as a minor league player during the 1950s. He was 20 years old when he broke into the big leagues on September 22, 1949, with the St. Louis Cardinals.Nat Hiken, creator of The Phil Silvers Show,...
  
   was purchased from the Cubs by the Cincinnati Redlegs
  Cincinnati Reds
  The Cincinnati Reds are a Major League Baseball team based in Cincinnati, Ohio. They are members of the National League Central Division. The club was established in 1882 as a charter member of the American Association and joined the National League in 1890....
  
  .
• November 16, 1957: Casey Wise
  Casey Wise
  Kendall Cole "Casey" Wise was an American college and professional baseball player who was a Major League Baseball infielder during parts of four seasons, between 1957 and 1960, with three different clubs: the Chicago Cubs, the Milwaukee Braves and the Detroit Tigers.The son of longtime MLB scout...
  
   was traded by the Cubs to the Milwaukee Braves
  Atlanta Braves
  The Atlanta Braves are a professional baseball club based in Atlanta, Georgia. The Braves are a member of the Eastern Division of Major League Baseball's National League. The Braves have played in Turner Field since 1997....
  
   for Chick King
  Chick King
  Charles Gilbert "Chick" King was a Major League Baseball outfielder who played for the Detroit Tigers , Chicago Cubs , and St. Louis Cardinals ....
  
  , Ben Johnson
  Ben Johnson (pitcher)
  Benjamin Franklin Johnson is an American former Major League Baseball pitcher. He pitched in parts of two seasons, and , for the Chicago Cubs. He also had an extensive minor league baseball career, spanning sixteen seasons from to .-Sources:...
  
  , Leonard Williams (minors) and cash.
• December 2, 1957: Tony Taylor
  Tony Taylor
  Antonio Nemesio Taylor is a former second baseman in Major League Baseball. From 1958 through , Taylor played for the Chicago Cubs , Philadelphia Phillies and Detroit Tigers...
  
   was drafted by the Cubs from the San Francisco Giants
  San Francisco Giants
  The San Francisco Giants are a Major League Baseball team based in San Francisco, California, playing in the National League West Division....
  
   in the 1957 rule 5 draft
  Rule 5 draft
  The Rule 5 draft is a Major League Baseball player draft that occurs each year in December, at the annual Winter Meeting of general managers. The Rule 5 draft aims to prevent teams from stockpiling too many young players on their minor league affiliate teams when other teams would be willing to...
  
  .
• December 10, 1957: Tom Poholsky
  Tom Poholsky
  Thomas George Poholsky was an American professional baseball player, and a pitcher in Major League Baseball from –. A right-hander, he stood tall and weighed ....
  
   was traded by the Cubs to the San Francisco Giants
  San Francisco Giants
  The San Francisco Giants are a Major League Baseball team based in San Francisco, California, playing in the National League West Division....
  
   for Freddy Rodríguez
  Freddy Rodríguez (baseball)
  Fernando Pedro Rodríguez Borrego is a former pitcher in Major League Baseball who played for the Chicago Cubs and Philadelphia Phillies . Listed at 6'0...
  
  .

Notable transactions

• April 3, 1958: Bob Speake
  Bob Speake
  Robert Charles Speake , nicknamed "Spook," is a retired American professional baseball player. He was an outfielder for the Chicago Cubs and San Francisco Giants of Major League Baseball in the 1950s....
  
   and cash were traded by the Cubs to the San Francisco Giants
  San Francisco Giants
  The San Francisco Giants are a Major League Baseball team based in San Francisco, California, playing in the National League West Division....
  
   for Bobby Thomson
  Bobby Thomson
  Robert Brown "Bobby" Thomson was a Scottish-born American professional baseball player. Nicknamed "The Staten Island Scot", he was an outfielder and right-handed batter for the New York Giants , Milwaukee Braves , Chicago Cubs , Boston Red Sox and Baltimore Orioles .His season-ending three-run...
  
  .
• May 20, 1958: Jim Brosnan
  Jim Brosnan
  James Patrick Brosnan was a Major League Baseball player from 1954 and 1956 through 1963. He was a pitcher for the Chicago Cubs, St. Louis Cardinals, Cincinnati Reds and Chicago White Sox...
  
   was traded by the Cubs to the St. Louis Cardinals
  St. Louis Cardinals
  The St. Louis Cardinals are a professional baseball team based in St. Louis, Missouri. They are members of the Central Division in the National League of Major League Baseball. The Cardinals have won eleven World Series championships, the most of any National League team, and second overall only to...
  
   for Alvin Dark
  Alvin Dark
  Alvin Ralph Dark , nicknamed "Blackie" and "The Swamp Fox", is a former shortstop and manager in Major League Baseball who played for five National League teams from 1946 to 1960. Named the major leagues' Rookie of the Year with the Boston Braves when he batted .322...
  
  .

Roster

Starters by position

Other batters

Starting pitchers

Other pitchers

Relief pitchers

Farm system