Cubs' Javier Baez honored to wear No. 21 on Roberto Clemente Day
MLB promotes youth baseball in Puerto Rico
Javier Báez, Baseball Wiki
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MLB expands list of who can wear No. 21 to honor Roberto Clemente
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Javier Báez on Roberto Clemente Day
Javy Baez: MLB News, Bio & More - ChicagoSportsHQ
MLB expands list of who can wear No. 21 to honor Roberto Clemente
Pittsburgh Pirates each don No. 21 to honor Roberto Clemente - ESPN
Javier Báez - Wikipedia
Clemente's spirit alive in Puerto Rico's youth baseball programs
Pittsburgh_Pirates