New York Yankees to retire Paul O'Neill's No. 21
O'Neill honored 21 to join Ruth's 3, Gehrig's 4, Yogi's 8 - The San Diego Union-Tribune
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Appreciating the retired single-digit numbers of the New York Yankees
Paul O'Neill honored 21 to join Ruth's 3, Gehrig's 4, Yogi's 8
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Yankees retired numbers ahead of Paul O'Neill's 2022 ceremony
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The Athletic] The Yankees have asked MLB if they can stop issuing uniform numbers to their manager and coaches because they're running out of numbers that aren't retired : r/baseball