All Puerto Rican players can wear 21 on Clemente Day
No, we do not need to retire Roberto Clemente's number across baseball - NBC Sports
Yadier Molina home run wearing Roberto Clemente No. 21
Pittsburgh Pirates each don No. 21 to honor Roberto Clemente - ESPN
All Pirates Wearing #21, Rest of MLB Wears Patches in Honour of Roberto Clemente – SportsLogos.Net News
Carlos Beltran Headlines New Baseball Hall of Fame Candidates - The New York Times
Pirates, MLB honour 'the Great One' Roberto Clemente
Roberto Clemente Award 2023 nominees
Reds 5, Mets 3—Comeback spoiled on Roberto Clemente Day - Amazin' Avenue