Yanks to retire numbers for Williams, Pettitte, Posada
All About Sports Cards: Yankees to Retire Bernie Williams, Jorge Posada and Andy Pettitte Numbers and are the focus of Hump Day Hits
Jorge Posada, Retired Number
New York Yankees Andy Pettite Photos and Premium High Res Pictures - Getty Images
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3.5x5 Flexible Fridge Magnet - NY YANKEES RETIRED NUMBERS
New York Yankees retired numbers: Is team too generous? - Sports Illustrated
Yankees to retire Paul O'Neill's No. 21: See the complete list of retired numbers
Yankees to Retire Pettitte, Posada and Williams Numbers
New York Yankees retired Paul O'Neill's No. 21 jersey
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Are there any other Yankees who should have their numbers retired? - Pinstripe Alley
Jorge Posada retires after 17 seasons, 5 titles - CBS News
Forty-Sixed: a needlessly lengthy look at the Yankees' needlessly extensive history (and future) of retired numbers - Pinstripe Alley
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