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Joe Maddon gets early boot but Cubs rally for 6 runs in 9-5 win over Pirates
Third jersey - Wikipedia
Throwback uniform - Wikipedia
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Cubs wear throwback jerseys to honor Negro Leagues
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Orioles to wear Negro League throwback uniforms on May 30th against the Astros - Camden Chat
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Sounds Host Iowa Cubs For Six-Game Series Starting on Tuesday, May 23
Marlins wear throwback uniforms to honor Negro Leagues
Uni Watch - The best throwback uniform for each MLB team - ESPN
Royals, Cards Wear Excellent Negro Leagues Throwbacks
Throwback uniform - Wikipedia