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New York Yankees on LinkedIn: Yankees to Retire Paul O'Neill's No
The Yankees Retire Paul O'Neill's Number 21 - The New York Times
As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water
New York Yankees history: Paul O'Neill's number 21 must be retired
Paul O'Neill Yankees No. 21 retired
Paul O'Neill's No. 21 to be retired by Yankees
NY Yankees retire Paul O'Neill's No. 21
Yankees retire Paul 'The Warrior' O'Neill's No. 21 jersey
New York Yankees to retire Paul O'Neill's No. 21 on Aug. 21