The Pittsburgh Pirates retire Roberto Clemente's uniform number 21 in a moving pre-game ceremony - This Day In Baseball
All Pirates Wearing #21, Rest of MLB Wears Patches in Honour of Roberto Clemente – SportsLogos.Net News
Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21
Pirates, Mets wear 21 on Roberto Clemente Day
Pirates to once again wear No. 21 for Roberto Clemente Day
Pirates players, coaches honored to wear No. 21 in celebration of Roberto Clemente Day
Remembering the life and legacy of #21 on Roberto Clemente Day
Pirates to once again wear No. 21 for Roberto Clemente Day
Roberto Clemente Day: MLB expands list of who can wear No. 21 to Pirates, Puerto Rican players, award nominees
Roberto Clemente: A Tribute to the Great One
Some MLB Players Wearing #21, All Wearing 21 Patches Today for Roberto Clemente Day – SportsLogos.Net News
50 years after Roberto Clemente's death is time of introspection for Puerto Rican baseball
Yankees rally in the ninth to slip past the Pittsburgh Pirates 7-5 on Roberto Clemente Day