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Jackie Robinson Day, when MLB players can wear No. 42
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MLB 2018 holiday uniforms unveiled, by Rowan Kavner
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All MLB Players to Wear No. 42 in Dodger Blue on Jackie Robinson
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Why are MLB players wearing No. 42 jerseys today?
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Red Sox Jackie Robinson jerseys: How to buy jerseys and hats
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Pirates' Cole Tucker on 75th Jackie Robinson Day: Wearing No. 42
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Dodgers Throwback Uniforms, Everyone in 42 for Jackie Robinson Day
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MLB: Jackie Robinson Day honored with players wearing #42 jerseys
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Petriello] All the Jackie 42 unis this year will have the number
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Robinson's 42 In Dodger Blue For All Uniforms On April 15