Roberto Clemente Archives
Clemente's #21 will not be retired across MLB despite report
Puerto Rican Twins don No. 21 in tribute to Roberto Clemente – Twin Cities
Living out the legacy: Curve retire No. 21 as reminder of Clemente's greatness
The push to retire Clemente's No. 21, Major League Baseball
Pittsburgh Pirates each don No. 21 to honor Roberto Clemente - ESPN
Five Astros wear No. 21 on Roberto Clemente Day
Red Sox: Kiké Hernández pays unique tribute to Roberto Clemente
Roberto Clemente Day: Pirates and Mets wear 21
A Look at 2022's Roberto Clemente Day