Roberto Clemente's Family Temporarily Giving Up Fight to Get No. 21 Retired Across MLB

Campaign To Retire Roberto Clemente's No. 21 Throughout MLB Gains Traction

For Many Latino Players, Roberto Clemente's Number Is Off Limits, Too - The New York Times

D-backs, Padres celebrate Roberto Clemente Day

Should MLB retire Roberto Clemente's jersey number?

This Wednesday September 9, 2020 we make a push to get the number 21 retired in the MLB for the 🐐 Roberto Clemente. Show your support this Wednesday by, By Ramon Clemente

Retire No. 21 for Roberto Clemente - Our Esquina

Retire No. 21 for Roberto Clemente - Our Esquina

Tim Wakefield, former Red Sox pitcher, dies at 57

List of Major League Baseball retired numbers - Wikipedia