Mlb

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Major League Baseball Commissioner Rob Manfred walks to a news conference following a meeting with MLB owners, Friday, Feb. 3, 2017, in Palm Beach, Fla. (AP Photo/Lynne Sladky)

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Major League Baseball Commissioner Rob Manfred speaks during a news conference following a meeting with MLB owners, Friday, Feb. 3, 2017, in Palm Beach, Fla. (AP Photo/Lynne Sladky)

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Former MLB and NFL player Bo Jackson, watches Auburn and Clemson practice before an NCAA college football game against Auburn, Saturday, Sept. 3, 2016, in Auburn, Ala. (AP Photo/Brynn Anderson)

Jackie Robinson became the first African American to play in Major League Baseball (MLB) in the modern era. Robinson broke the baseball color line when the Brooklyn Dodgers started him at first base on April 15, 1947. The Dodgers, by signing Robinson, heralded the end of racial segregation in professional baseball that had relegated black players to the Negro leagues since the 1880s. Robinson was inducted into the Baseball Hall of Fame in 1962. Robinson had an exceptional 10-year baseball career. He was the recipient of the inaugural MLB Rookie of the Year Award in 1947, was an All-Star for six consecutive seasons from 1949 through 1954, and won the National League Most Valuable Player Award in 1949the first black player so honored. Robinson played in six World Series and contributed to the Dodgers' 1955 World Series championship. In 1997, MLB "universally" retired his uniform number, 42, across all major league teams; he was the first pro athlete in any sport to be so honored. MLB also adopted a new annual tradition, "Jackie Robinson Day", for the first time on April 15, 2004, on which every player on every team wears No. 42. (AP Photo/File)

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Former MLB pitcher Roger Clemens and Chaz Bono.

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New MLB commissioner Rob Manfred wants to engage more inner-city youth in baseball. (Associated Press)

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San Diego Padres' Cameron Maybin runs out a ground rule RBI double against the Colorado Rockies during the sixth inning of an MLB baseball game on Monday, July 7, 2014, in Denver (AP Photo/Jack Dempsey)

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**FILE** Major League Baseball commissioner Bud Selig, right, talks with Baltimore Orioles owner Peter Angelos, left, after the MLB owners meeting in Paradise Valley, Ariz., Thursday Jan. 15, 2009. (AP Photo/Aaron J. Latham