Pirates will honor Roberto Clemente by wearing his No. 21 on their
Pirates, Mets wear 21 on Roberto Clemente Day
Roberto Clemente's No. 21 is 'retired in our hearts' but not on
Pirates Announce Plans For Roberto Clemente Day
Pirates walk off on Roberto Clemente Day as push to retire his No
Baseball Celebrates Clemente with “21” Patches; Pirates and Award
Roberto Clemente Jr. blasts MLB for not announcing award winner at
All of MLB's Puerto Rican players can wear No. 21 on Roberto
Some MLB Players Wearing #21, All Wearing 21 Patches Today for