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Photos: MLB celebrates Jackie Robinson's breaking of color barrier
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Puerto Rican Twins don No. 21 in tribute to Roberto Clemente
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All Pirates Wearing #21, Rest of MLB Wears Patches in Honour of
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Pirates, Mets wear 21 on Roberto Clemente Day
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Rich tradition of retired numbers part of game's legacy
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Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21
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Roberto Clemente day: Puerto Rican MLB players, Pirates wear No. 21
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Ichiro Suzuki - Wikipedia
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MLB Let Players Pick a Crazy Nickname to Wear. Their Choices Were
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Pirates will honor Roberto Clemente by wearing his No. 21 on their
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All Pirates Wearing #21, Rest of MLB Wears Patches in Honour of