Pirates will honor Roberto Clemente by wearing his No. 21 on their
All Puerto Rican players can wear 21 on Clemente Day
MLB allows more players to wear No. 21 to honor Roberto Clemente
Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21
MLB's Pirates will honor Roberto Clemente by wearing his number
Some MLB Players Wearing #21, All Wearing 21 Patches Today for
Roberto Clemente: Remembering the Pirates Hall of Famer 50 years
MLB gets it right with Roberto Clemente No. 21 jersey policy
Roberto Clemente – mlbblogger