NY Yankees royalty honored as Paul O'Neill's No. 21 is retired
Yankees honor O'Neill with plaque
Yankees honor Tino Martinez with Monument Park plaque
Yankees honor Paul O'Neill with Monument Park plaque
Paul O'Neill 'honored' to be 23rd Yankee with number retired
Yankees legend Paul O'Neill to receive ultimate honor this August
Jeter's No 2 retired by Yanks; Monument Park plaque unveiled
Yankees retire Derek Jeter's No 2 and unveil Monument Park plaque
Yankees retire Paul O'Neill's No. 21 jersey, Cashman booed
Loss Isn't Only Reminder That Era of Yankees' Dominance Has Waned - The New York Times
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