Offseason

• November 6, 1933: Tony Freitas
  Tony Freitas
  Antonio "Tony" Freitas, Jr. was an American athlete who played as a pitcher in the minor leagues and Major League Baseball, spending most of his career with the Sacramento Senators of the Pacific Coast League. He played in the majors with the Philadelphia Athletics and the Cincinnati Reds...
  
  , Gowell Claset
  Gowell Claset
  Gowell Sylvester Claset was an American Major League Baseball pitcher. He played for the Philadelphia Athletics during the season.-References:...
  
  , and cash were traded by the Athletics to the St. Paul Saints
  St. Paul Saints
  The St. Paul Saints are a professional baseball team based in Saint Paul, Minnesota, in the United States. The Saints are a member of the North Division of the American Association of Independent Professional Baseball, which is not affiliated with Major League Baseball...
  
   for Rip Radcliff
  Rip Radcliff
  Raymond Allen Radcliff was a Major League Baseball outfielder and first baseman. He played mainly for the Chicago White Sox, but also played for the St. Louis Browns and the Detroit Tigers. His best season came in when he batted .342 and finished 9th in AL MVP voting...
  
  .
• December 12, 1933: Mickey Cochrane
  Mickey Cochrane
  Gordon Stanley "Mickey" Cochrane was a professional baseball player and manager. He played in Major League Baseball as a catcher for the Philadelphia Athletics and Detroit Tigers...
  
   was traded by the Athletics to the Detroit Tigers
  Detroit Tigers
  The Detroit Tigers are a Major League Baseball team located in Detroit, Michigan. One of the American League's eight charter franchises, the club was founded in Detroit in as part of the Western League. The Tigers have won four World Series championships and have won the American League pennant...
  
   for Johnny Pasek
  Johnny Pasek
  John Paul "Johnny" Pasek was a Major League Baseball catcher. Pasek played for the Detroit Tigers in and the Chicago White Sox in . He batted and threw right-handed....
  
   and $100,000.
• December 12, 1933: Lefty Grove
  Lefty Grove
  Robert Moses "Lefty" Grove was a professional baseball pitcher. After having success in the minor leagues during the early 1920s, Grove became a star in Major League Baseball with the American League's Philadelphia Athletics and Boston Red Sox, winning 300 games in his 17-year MLB career...
  
  , Max Bishop
  Max Bishop
  Max Frederick Bishop was a second baseman in Major League Baseball who played from through for the Philadelphia Athletics and Boston Red Sox . Bishop batted left-handed and threw right-handed...
  
   and Rube Walberg
  Rube Walberg
  George Elvin Walberg was a starting pitcher in Major League Baseball who played from through for the New York Giants , Philadelphia Athletics and Boston Red Sox . Walberg batted and threw left-handed...
  
   were traded by the Athletics to the Boston Red Sox
  Boston Red Sox
  The Boston Red Sox are a professional baseball team based in Boston, Massachusetts, and a member of Major League Baseball’s American League Eastern Division. Founded in as one of the American League's eight charter franchises, the Red Sox's home ballpark has been Fenway Park since . The "Red Sox"...
  
   for Bob Kline
  Bob Kline
  Robert George Kline [Junior] was a pitcher in Major League Baseball who played for three different teams between the 1930 and 1934 seasons. Listed at 6' 3", 200 lb., Kline batted and threw right-handed. He was born in Enterprise, Ohio.- Career :A fastball thrower, Kline did almost everything a...
  
  , Rabbit Warstler
  Rabbit Warstler
  Harold Burton "Rabbit" Warstler was a professional baseball infielder. He played all or part of 11 seasons in Major League Baseball as a shortstop and second baseman for the Boston Red Sox , Philadelphia Athletics , Boston Bees and Chicago Cubs .In his career, Warstler played in 1,205 games and...
  
  , and $125,000.
• March 27, 1934: Rip Radcliff and George Detore
  George DeTore
  George Francis DeTore was a Major League Baseball infielder who played for two seasons. He played for the Cleveland Indians from 1930 to 1931.-External links:...
  
   were traded by the Athletics to the Louisville Colonels for Hank Erickson
  Hank Erickson
  Henry Nels "Hank" Erickson was a professional baseball catcher. Erickson spent seven seasons in professional baseball, one of which was in Major League Baseball with the Cincinnati Reds. Over his major league career, Erickson batted .261 with nine runs, 23 hits, three doubles, two triples, one...
  
  . Hank Erickson was returned to the Colonels in April 1934.

Notable transactions

• May 14, 1934: Ed Madjeski
  Ed Madjeski
  Edward William Madjeski was a Major League Baseball catcher. He played all or part of four seasons in the majors, between and , for the Philadelphia Athletics, Chicago White Sox and New York Giants...
  
   was released by the Athletics.
• August 9, 1934: Wally Moses
  Wally Moses
  Wallace Moses was a right fielder in Major League Baseball. From 1935 through 1951, he played for the Philadelphia Athletics , Chicago White Sox and Boston Red Sox . Moses batted and threw left-handed...
  
   was purchased by the Athletics from the Galveston Buccaneers
  Galveston Buccaneers
  The Galveston Buccaneers were a minor league baseball team that existed from 1931 to 1937. Based in Galveston, Texas, USA, they played in the Texas League. Their home ballpark was Moody Stadium. Notable players include Del Pratt, Beau Bell, Wally Moses and Harry Brecheen...
  
  .

Roster

Starters by position

Other batters

Starting pitchers

Other pitchers

Relief pitchers