Roberto Clemente Day celebrated around MLB in 2023
Jackie Robinson Day - Wikipedia
Pittsburgh Pirates - We all wear 42 today. #Jackie42
Some MLB Players Wearing #21, All Wearing 21 Patches Today for
List of Major League Baseball retired numbers - Wikipedia
MLB Clemente Award winners wear his 21 on caps for careers
Padres should retire Caminiti's #21 before it's too late
Some MLB Players Wearing #21, All Wearing 21 Patches Today for
MLB players can wear nicknames on unis in August
Five Astros wear No. 21 on Roberto Clemente Day
Fernando Cruz, Alexis Diaz honored to wear No. 21 on Clemente Day