Sources: MLB letting more players to wear No. 21 for Clemente Day
Pittsburgh Pirates each don No. 21 to honor Roberto Clemente - ESPN
Puerto Rican players follow Pirates' push to wear No. 21
Some MLB Players Wearing #21, All Wearing 21 Patches Today for
All Puerto Rican players can wear 21 on Clemente Day
MLB celebrates Roberto Clemente Day, ceremony at Citi Field
All Pirates Wearing #21, Rest of MLB Wears Patches in Honour of
Roberto Clemente Award winners to wear cap patch
MLB's Puerto Rican-born players honor Roberto Clemente by wearing 21
Members of Red Sox wear No. 21 with pride on Roberto Clemente Day
Major League Baseball marks Roberto Clemente Day with ceremony at
Puerto Rican MLB players can wear number 21 on Clemente Day
Roberto Clemente's No. 21 is 'retired in our hearts' but not on
MLB celebrates Roberto Clemente Day as players wear No. 21, call