MLB should retire Roberto Clemente's No. 21
New Jersey politicians move to retire Roberto Clemente's No. 21 across all of baseball
MLB's Pirates will honor Roberto Clemente by wearing his number
How Roberto Clemente Jr. wants to honor his dad transcends retiring the iconic Pirate's numbers
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Should MLB retire Roberto Clemente's jersey number?
Altoona Curve to officially retire Roberto Clemente's No. 21 during ceremony Friday
Roberto Clemente - Wikipedia
Clemente's #21 will not be retired across MLB despite report
Javier Báez on Roberto Clemente Day
Hot take: Roberto Clemente Day should be just like Jackie Robinson Day💯⚾️ : r/mlb
Roberto Clemente 1961 - Stuff Nobody Cares About
No, we do not need to retire Roberto Clemente's number across baseball - NBC Sports