MLB should retire Roberto Clemente's No. 21
Curve Set to Retire No. 21 In Honor of Roberto Clemente
Que Viva Clemente! Roberto Lives On in the Hearts of Latino Major Leaguers – Society for American Baseball Research
Roberto Clemente's death 50 years ago forever changed his son, a former Phillies minor leaguer
Angels coach Jose Molina puts Roberto Clemente's number on his back – Orange County Register
Honor a Legacy, Not a Number - The New York Times
Talkin' 21 on X: #OTD in 1973 it was Opening Day at Three Rivers Stadium. With his immediate family and #Pirates ownership in attendance, Roberto Clemente's number was retired. It was a
MLB celebrates Roberto Clemente Day, ceremony at Citi Field
MLB celebrates Roberto Clemente Day
It's time for Roberto Clemente's No. 21 to be retired across baseball - Bucs Dugout
ROBERTO CLEMENTE PITTSBURGH PIRATES RETIRED JERSEY NUMBER 21 QUALITY PATCH
Tell MLB to retire Roberto Clemente's number