Yankees will retire Paul O'Neill's No. 21 jersey in August at
The Yankee Years: Torre, Joe, Verducci, Tom: 9780767930420
Yankees' retirement of Paul O'Neill's number might be a stretch
New York Yankees to retire All-Star Paul O'Neill's No. 21 jersey
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As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water
Forty-Sixed: a needlessly lengthy look at the Yankees' needlessly
As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water