Paul O'Neill's No. 21 to Be Retired By Yankees – NBC New York
Paul O'Neill thanks Yankees organization, fans on Twitter
Yankees to retire Paul O'Neill's No. 21 at Yankee Stadium on August 21st - Pinstripe Alley
New York Yankees retire Paul O'Neill's No. 21; GM Brian Cashman, owner Hal Steinbrenner booed by fans - ESPN
As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
8.21.22 Paul O'Neill's No. 21 enters - New York Yankees
Yankees to Retire Paul O'Neill's Number 21
NY Yankees retire Paul O'Neill's No. 21
New York Yankees Legends: Paul O'Neill There's a Warrior in right field
Paul O'Neill's number to be retired by Yankees
Paul O'Neill, Baseball Wiki
Paul O'Neill calls Yankees jersey retirement 'highest honor