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MLB: Baseball's 'unwritten rules' are a challenge to navigate
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Every uniform number ever, ranked by value
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JAY DUNN: MLB Draft League has a few things it needs to iron out ahead of year two – Trentonian
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How players are using uniform numbers to break MLB's unwritten rules - ESPN
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This Baseball Blog Does Not Exist : r/baseball
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How players are using uniform numbers to break MLB's unwritten rules - ESPN
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Giants' Gabe Kapler is right to ignore baseball's unwritten rules
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MLB adds Negro Leagues players, statistics to official records, Trending
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Notebook: Ruiz's COVID-19 recovery, Roberts on unwritten rules, by Rowan Kavner
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The unwritten rules of baseball