Yankees retire Paul O'Neill's No. 21 jersey
Yankees Mag: The Warrior's Day Cometh
NY Yankees retire Paul O'Neill's No. 21
New York Yankees Announce Retirement of Paul O'Neill's Number 21
New York Yankees history: Paul O'Neill's number 21 must be retired
Paul O'Neill Day Number Retired
Paul O'Neill Number Retirement before Yankees vs. Blue Jays on
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Paul O'Neill Number Retirement before Yankees vs. Blue Jays on
Paul O'Neill Yankees No. 21 retired
Yankees to retire Paul O'Neill's No. 21 jersey this summer - Newsday