Yankees to retire Joe Torre's number
Yankees' retirement of Paul O'Neill's number might be a stretch - Pinstripe Alley
Yankees retire Paul 'The Warrior' O'Neill's No. 21 jersey
Paul O'Neill will finally have number retired by Yankees
Paul O'Neill: New York Yankees to retire jersey number
Readers sound off on Yankees retired numbers, the GOP and the 9/11 Tribute Museum – New York Daily News
Yankees announce next player to have his number retired at Yankee Stadium
Paul O'Neill's number to be retired by Yankees
Paul O'Neill, Baseball Wiki
As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
Yankees Retired Numbers - Who Are The 22 Yankees Who Wore Them
Who is Paul O'Neill and what is his net worth?
NY Yankee Paul O'Neill's No. 21 to be retired on Aug. 21
NY Yankees retire Paul O'Neill's No. 21