Honor a Legacy, Not a Number - The New York Times
A's Vimael Machin 'honored' to wear No. 21 on Roberto Clemente Day
Pittsburgh Pirates Archives - Pittsburgh Quarterly
El Magnífico
Fightins to Retire Roberto Clemente's #21
Roberto Clemente - Wikipedia
Dodgers' Kiké Hernández honors Roberto Clemente after homer - Los
Roberto Clemente: Baseball Rebel – Society for American Baseball
Roberto Clemente: A Tribute to the Great One
MLB Celebrates Roberto Clemente Day
Carlos Delgado says MLB should retire Roberto Clemente's No. 21
Roberto_Clemente
All Pirates Wearing #21, Rest of MLB Wears Patches in Honour of
MLB misuses Clemente's image in their locking out of the Players