MLB's Puerto Rican-born players honor Roberto Clemente by wearing 21
MLB Celebrates Roberto Clemente Day
Should Roberto Clemente's #21 Be Universally Retired Across MLB?
Roberto Clemente's No. 21 is 'retired in our hearts' but not on most MLB rosters - The Athletic
Pirates will honour Roberto Clemente by wearing his No. 21 on Clemente Day - Article - Bardown
Roberto Clemente recorded 3,000th hit 50 years ago today - Bucs Dugout
Pirates will wear Roberto Clemente No. 21
Pittsburgh Pirates to wear No. 21 on Sept. 9 to honor Roberto Clemente
Celebrating Roberto Clemente day : r/baseball
For the 'Great One'; Pirates, MLB honor Roberto Clemente
ESPN: MLB to allow Pirates, Puerto Rican players, award nominees to wear No. 21 on Roberto Clemente Day
For the 'Great One'; Pirates, MLB honor Roberto Clemente – KXAN Austin
Roberto Clemente: More than Latin America's baseball star
All Pirates Wearing #21, Rest of MLB Wears Patches in Honour of Roberto Clemente – SportsLogos.Net News
Roberto Clemente Day celebrated around MLB in 2023