SF Giants' Ortiz, García to wear No. 21 on Roberto Clemente Day
Vera Clemente Roberto Clemente special bond
Sources: MLB letting more players to wear No. 21 for Clemente Day
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Afro-Latinx Bibliography - Latinx Studies: Library of Congress Resources - Research Guides at Library of Congress
MLB allows more players to wear No. 21 to honor Roberto Clemente – NBC Sports Bay Area & California
Proud to wear 21” Tampa Bay Rays' honor legendary Roberto Clemente with a 1st-in-history All-Latino line-up – FirstSportz
Triplet Alignment Model
A Glimpse into the Life of Roberto Clemente and his time in Fort Myers
Some MLB Players Wearing #21, All Wearing 21 Patches Today for Roberto Clemente Day – SportsLogos.Net News
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Pirates will honour Roberto Clemente by wearing his No. 21 on Clemente Day - Article - Bardown
Giants coach Nick Ortiz campaigns for universally retiring Clemente's 21
Some MLB Players Wearing #21, All Wearing 21 Patches Today for Roberto Clemente Day – SportsLogos.Net News
Five Astros wear No. 21 on Roberto Clemente Day