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

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No, we do not need to retire Roberto Clemente's number across baseball - NBC Sports

Living out the legacy: Curve retire No. 21 as reminder of Clemente's greatness

NYSportsJournalism.com - MLB Accolades Commemorate Roberto Clemente Day - On Roberto Clemente Day, MLB Will Honor 50th Anniversary Of His Passing

Vive la vida minuto a minuto!! (@jonathansanchez57) • Instagram photos and videos

The Pittsburgh Pirates retire Roberto Clemente's uniform number 21 in a moving pre-game ceremony - This Day In Baseball

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