MLB should retire Roberto Clemente's No. 21

Puerto Rican players pushing for MLB to retire Clemente's number

Global Sport Matters on Twitter: The movement to retire the No. 21 of @Pirates icon Roberto Clemente throughout #MLB continues to gain supporters, such as Cubs manager Joe Maddon. / Twitter

MLB gets it right with Roberto Clemente No. 21 jersey policy

The Movement to Retire Roberto Clemente's Number From the MLB Is Flourishing - News Taco

Pirates Retired Numbers

SF Giants' Ortiz, García to wear No. 21 on Roberto Clemente Day

Roberto Clemente, A for Athlete

For the 'Great One': PittsburghPirates, Major League Baseball honor Roberto Clemente

MLB celebrates Roberto Clemente Day, ceremony at Citi Field

Curve Set to Retire No. 21 In Honor of Roberto Clemente