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

Yadier_Molina

December 31: ¡Arriba Roberto! - Sports Illustrated Vault

MLB celebrates Roberto Clemente Day, ceremony at Citi Field - The Columbian

Should MLB retire Roberto Clemente's No. 21?

Pirates come apart in 9th inning, suffer frustrating loss to Yankees

Oswaldo Cabrera credits Roberto Clemente bat for homer

Rivera] League source confirms league-wide retirement of Roberto Clemente's #21 is not happening at this time and there is no current plan in place for it to occur : r/baseball

Oswaldo Cabrera credits Roberto Clemente bat for homer

Clemente elected to Hall of Fame only months after crash

Clemente's #21 will not be retired across MLB despite report

A Uni Watch Look at MLB's Roberto Clemente Day

OTL: The enduring mystery of Roberto Clemente's bat - ESPN

Pittsburgh Pirates Roberto Clemente number 21 should be retired - ESPN - OneNacion Blog- ESPN