Retire 21: Supporters Seek To Honor Baseball Legacy Of Roberto Clemente
Angels' José Molina does his best to honor Roberto Clemente - Los Angeles Times
Uniform number (Major League Baseball) - Wikipedia
MLB celebrates Roberto Clemente Day, ceremony at Citi Field
Curve to retire No. 21, honor Roberto Clemente and family
Pirates will honor Roberto Clemente by wearing his No. 21 on their jerseys - ESPN
Rays again lean into Roberto Clemente Day event
Remembering the life and legacy of #21 on Roberto Clemente Day
Roberto Clemente Day: Brent Suter celebrates MLB legend, wears No. 21
Altoona Curve honors Pirates legend Roberto Clemente, retires No. 21
Yankees help pay tribute to former Pirates great Roberto Clemente - Newsday