Demilio: Roberto Clemente Day Serves as Another Reminder to Retire

A half century after his tragic death during a life-saving mission of mercy, we must honor Roberto Clemente's legacy and permanently retire his No. 21

Rivera] League source confirms league-wide retirement of Roberto Clemente's #21 is not happening at this time and there is no current plan in place for it to occur : r/baseball

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

Black and Gold: Baseball should retire Roberto Clemente's No. 21

Liover Peguero Archives Pittsburgh Baseball Now

No, we do not need to retire Roberto Clemente's number across baseball - NBC Sports

Carlos Delgado says MLB should retire Roberto Clemente's No. 21

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

Carlos Delgado says MLB should retire Roberto Clemente's No. 21