Roberto Clemente Day: Pirates and Mets wear 21
Should Roberto Clemente's #21 Be Universally Retired Across MLB?
Pirates, Major League Baseball, Set to Honor the Great One on Clemente Day - Pittsburgh Baseball Now
Why are MLB players wearing 21? Tributes around the league for Pirates legend explained
Pirates players, coaches honored to wear No. 21 in celebration of Roberto Clemente Day
MLB allows more players to wear No. 21 to honor Roberto Clemente – NBC Sports Chicago
Roberto Clemente Day celebrated around MLB in 2023
Oakland A's: Happy Roberto Clemente Day! - Athletics Nation
Wearing Roberto Clemente's No. 21 an honor for Francisco Lindor, Sandy Alomar Jr. and all Puerto Rican-born Cleveland Indians
Francisco Lindor, Carlos Carrasco help Mets snap streak against Pirates
All Pirates Wearing #21, Rest of MLB Wears Patches in Honour of Roberto Clemente – SportsLogos.Net News
Pittsburgh Pirates will all wear No. 21 to celebrate Roberto Clemente Day in 2020, per report
No, we do not need to retire Roberto Clemente's number across baseball - NBC Sports
Celebrating Roberto Clemente day : r/baseball
MLB should retire Roberto Clemente's No. 21