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Yankees retired numbers and the baseball legends who wore them
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New York Yankees to retire Paul O'Neill's No. 21 on Aug. 21 - The San Diego Union-Tribune
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Learning Curve: John Ryan Murphy Keeping Sharp As Yankee Backup • In The Zone
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Yankees Will Retire Numbers for Jorge Posada, Bernie Williams, Andy Pettitte - WSJ
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Where Derek Jeter ranks among Yankees' retired single-digit numbers
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Yankees to retire RF Paul O'Neill's No. 21 on Aug. 21 - The Athletic
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Jorge Posada, Baseball Wiki
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Posada immortalized with retirement of No. 20
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Jorge Posada has No. 20 retired by Yankees on 'one of the happiest days of my life' – New York Daily News
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I was a New York Yankees legend - but after baseball I took up a very different career to help my sick son
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Emotional Andy Pettitte says thanks as New York Yankees retire his No 46 shirt, New York Yankees