Yankees retire Paul O'Neill's No. 21 jersey, Cashman booed
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New York Yankees retire Paul O'Neill's No. 21; GM Brian Cashman, owner Hal Steinbrenner booed by fans - ESPN
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Yankees GM Brian Cashman Backs Aaron Boone to Turn Fans' 'Slings' into 'Bouquets' – NBC New York
Yankees Stadium Hijacked by Boos as Infuriated Fans Proclaim Frustration During Jersey Retirement Ceremony for Shocking Pinstripes Slump - EssentiallySports
Fans boo Yankees management as New York retires All-Star right fielder Paul O'Neill's No. 21 jersey
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