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Jorge Posada, Derek Jeter, A-Rod and Mariano Rivera join All
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New York Yankees: Jorge Posada and 10 Numbers They Need to Retire
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New York Yankees: Where Does Jorge Posada Rank Among All-Time
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Former Yankees who wore No. 2 share memories of number and Derek
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Missing Two Key Bats, Yankees' Offense Seems Adrift - The New York
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George Steinbrenner
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Yankees Retired Numbers: 5 Fast Facts You Need to Know
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Posada immortalized with retirement of No. 20
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Yankees Retired Numbers: 5 Fast Facts You Need to Know
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Injury to C.C. Sabathia and Another Yankees Loss Cast Shadow on
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Jorge Posada Yankee Yapping
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New York Yankees - Wikipedia
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Yankees Retired Numbers: 5 Fast Facts You Need to Know
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Terrific Ten: New York Yankees - Back Sports Page
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Here are the Yankees' 21 retired numbers