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MLB Clemente Award winners wear his 21 on caps for careers
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New generation takes over Coors Field All-Star Game at time when baseball needs it most: What a bonanza for the game
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Why are MLB players wearing 21? Tributes around the league for Pirates legend explained
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Baseball journeyman Wynton Bernard makes his MLB debut after 10 YEARS in the minors
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Mets wearing first responder hats for 9/11 game
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MLB Clemente Award winners wear his 21 on caps for careers - NBC Sports
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Was Roberto Clemente the Best MLB Player to Wear No. 21?
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Carlos Beltran Headlines New Baseball Hall of Fame Candidates - The New York Times
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Opening Day in MLB: New No. 21 patches, NL DHs and Guardians
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Tampa Bay Rays' all-Latino starting lineup of hitters makes MLB history - CBS News
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Saunders: Ranking MLB's City Connect uniforms, from worst to first – The Denver Post
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For the 'Great One': Pirates, MLB honor Roberto Clemente
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Nats DH Cruz, other Clemente Award winners wear '21' on caps
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MLB's Pirates will honor Roberto Clemente by wearing his number