MLB's Puerto Rican-born players honor Roberto Clemente by wearing 21
MLB Clemente Award winners wear his 21 on caps for careers - NBC Sports
Detroit Tigers celebrate 21st annual Negro Leagues Weekend this weekend
Cardinals, Molina homers wearing 21 on Roberto Clemente Day
Baseball is back: The 8 Jewish players to watch this season
Braves' new Saturday jersey pays tribute to Hank Aaron, Atlanta
Jackie Robinson Day, when MLB players can wear No. 42
Roberto Clemente Day celebrated around MLB in 2023
The Yankees Retire Paul O'Neill's Number 21 - The New York Times
MLB Clemente Award winners wear his 21 on caps for careers
Some MLB Players Wearing #21, All Wearing 21 Patches Today for Roberto Clemente Day – SportsLogos.Net News
Rangers, MLB honor late Hall of Famer Roberto Clemente with uniform patch, jersey numbers
MLB Let Players Pick a Crazy Nickname to Wear. Their Choices Were Dull. - WSJ