Rivera] League source confirms league-wide retirement of Roberto
Fightin Phils to retire Roberto Clemente's No. 21 – Reading Eagle
Retire 21 (@RetireTwentyOne) / X
Retire Twenty One
Retire # 21 Roberto Clemente
Bednar '17 Named 2022 Roberto Clemente Award Finalist - Lafayette
Campaign To Retire Roberto Clemente's No. 21 Throughout MLB Gains
Retire Twenty One
New Jersey politicians move to retire Roberto Clemente's No. 21
Clemente's #21 will not be retired across MLB despite report
Clemente #21 Black Tank - Roots of Fight
Fightins to Retire Roberto Clemente's #21 - BCTV