Houston Astros: 8 players don No. 21 on Roberto Clemente Day
For Many Latino Players, Roberto Clemente's Number Is Off Limits, Too - The New York Times
Should Roberto Clemente's #21 Be Universally Retired Across MLB?
Salvador Perez earns Royals Roberto Clemente Award nomination
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Pirates, MLB honour 'the Great One' Roberto Clemente
MLB allows more players to wear No. 21 to honor Roberto Clemente – NBC Sports Chicago
Roberto Clemente honors pirates star
MLB honors Roberto Clemente in 21st annual event
The Greatest MLB Players of All Time to Wear Each Number from 1 to 50, News, Scores, Highlights, Stats, and Rumors
Some MLB Players Wearing #21, All Wearing 21 Patches Today for Roberto Clemente Day – SportsLogos.Net News
Cristian Javier leads Astros to World Series history with combined no-hitter – Latino Sports
