Puerto Rican players pushing for MLB to retire Clemente's number

When did Roberto Clemente get his first Major League Baseball (MLB) hit? - Quora

It's time for Roberto Clemente's No. 21 to be retired across baseball - Bucs Dugout

Retire 21: Supporters Seek To Honor Baseball Legacy Of Roberto Clemente

Baseball in Clemente's Puerto Rico – a Dream Fulfilled - Pittsburgh Quarterly

Pirates, Mets wear 21 on Roberto Clemente Day

Rich tradition of retired numbers part of game's legacy

Puerto Rico Downs Dominican Republic in Thriller, But Díaz's Injury Sours the Night

Roberto Clemente Day: Pirates and Mets wear 21

Demilio: Roberto Clemente Day Serves as Another Reminder to Retire No. 21

Roberto was our brother': Dave Parker recalls first Pirates spring training after Clemente's death

For Many Latino Players, Roberto Clemente's Number Is Off Limits, Too - The New York Times

Roberto Clemente's legacy celebrated in N.Y., Puerto Rico

For Many Latino Players, Roberto Clemente's Number Is Off Limits, Too - The New York Times

Retire21 and farewell - Beyond the Box Score

MLB celebrates Roberto Clemente Day, ceremony at Citi Field

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