MLB's Pirates will honor Roberto Clemente by wearing his number
Pirates to wear No. 21 on Sept. 9 to honor Roberto Clemente - NBC Sports
Why are MLB players wearing 21? Tributes around the league for Pirates legend explained
Pittsburgh Pirates each don No. 21 to honor Roberto Clemente - ESPN
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Mets, Pirates to Wear No. 21 on Clemente Day - Metsmerized Online
How Roberto Clemente Jr. wants to honor his dad transcends retiring the iconic Pirate's numbers
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Roberto Clemente Day And 2023 MLB World Series Odds
All Pirates Wearing #21, Rest of MLB Wears Patches in Honour of Roberto Clemente – SportsLogos.Net News
Roberto Clemente recorded 3,000th hit 50 years ago today - Bucs Dugout