Retire No. 21 for Roberto Clemente - Our Esquina
Chris Taylor, Kiké Hernández & More Dodgers Celebrate Roberto Clemente Day 2023
MLB celebrates Roberto Clemente Day, ceremony at Citi Field
Nats DH Cruz, other Clemente Award winners wear '21' on caps
Uniform number (Major League Baseball) - Wikipedia
Members of Red Sox wear No. 21 with pride on Roberto Clemente Day - The Boston Globe
Puerto Rican MLB players can wear number 21 on Clemente Day
Roberto Clemente as influential as ever 50 years after death - Los Angeles Times
MLB expands list of who can wear No. 21 to honor Roberto Clemente on Sept. 15 - ESPN