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The Yankees Retire Paul O'Neill's Number 21 - The New York Times
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Yankees announce next player to have his number retired at Yankee Stadium
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Yankees retire Paul O'Neill's No. 21 jersey, Cashman booed - Seattle Sports
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Paul O'Neill (baseball) - Wikipedia
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Paul O'Neill gets choked up learning Yankees will retire his number: Who's next for the 'greatest honor'?
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Could Paul O'Neill's Yankees' ceremony be disrupted by vaccination status?
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Paul O'Neill calls Yankees jersey retirement 'highest honor
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Yankees retiring Paul O'Neill's number
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NY Yankees retire Paul O'Neill's No. 21