MLB allows more players to wear No. 21 to honor Roberto Clemente
Pirates would again like to wear No. 21 in 2021
Oakland A's: Happy Roberto Clemente Day! - Athletics Nation
Curve Set to Retire No. 21 In Honor of Roberto Clemente
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Report: MLB allowing more players to wear No. 21 on Roberto Clemente Day
MLB's Pirates will honor Roberto Clemente by wearing his number
MLB - Today, we remember Roberto Clemente, a great
Members of Red Sox wear No. 21 with pride on Roberto Clemente Day - The Boston Globe
Javier Baez uncertain he will be a long-term Met
Pirates to wear No. 21 on Sept. 9 to honor Roberto Clemente - NBC Sports