Yankees' retirement of Paul O'Neill's number might be a stretch
Thanks for Teaching Us How to Play With Intensity'- Derek Jeter
Derek Jeter at Yankees Old-Timers' Day with 1998 World Series champs
Paul O'Neill (baseball) - Wikipedia
Who is former Yankees player Paul O'Neill's wife?
Paul O'Neill – Society for American Baseball Research
If Paul O'Neill were managing, Yankees hitters would be ordered to
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Paul O'Neill's No. 21 to Be Retired By Yankees – NBC New York
A Longtime Devotee Examines His Evolving Game - The New York Times
Paul O'Neill on No. 21 retirement Yankees
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Yankees to retire Paul O'Neill's No. 21 jersey this summer - Newsday