As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
Yankees to retire Paul O'Neill's No. 21 jersey this summer - Newsday
This Day in Yankees History: Paul O'Neill's three homers spark playoff run- August 31, 1995 - Pinstripe Alley
New York Yankees to retire Paul O'Neill's jersey number during 2022 season - Sports Illustrated NY Yankees News, Analysis and More
Paul O'Neill, Baseball Wiki
New York Yankees to retire Paul O'Neill's No. 21 on Aug. 21
As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
Paul O'Neill was 'tone-setter in our clubhouse,' former Yankees teammate Joe Girardi says - Newsday
Yankees' retirement of Paul O'Neill's number might be a stretch - Pinstripe Alley
Paul O'Neill: New York Yankees to retire jersey number
New York Yankees retire Paul O'Neill's No. 21; GM Brian Cashman, owner Hal Steinbrenner booed by fans - ESPN
Reds: Paul O'Neill was best player to ever suit up for both Yankees and Cincinnati