Erik Boland on X: Yankees press release on Paul O'Neill… / X
Paul O'Neill Number Retirement before Yankees vs. Blue Jays on Sunday, August 21, 2022
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As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
Aaron Boone vents frustrations after Yankees lose to Blue Jays
Paul O'Neill Number Retirement before Yankees vs. Blue Jays on Sunday, August 21, 2022
Yankees had perfect gift for Paul O'Neill
New York Yankees to retire Paul O'Neill's No. 21 on Aug. 21 – Oneida Dispatch
New York Yankees Announce Retirement of Paul O'Neill's Number 21 – Celeb Secrets
As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
Uniform number (Major League Baseball) - Wikipedia