New York Yankees retire Paul O'Neill's No. 21; GM Brian Cashman, owner Hal Steinbrenner booed by fans - ESPN
The Yankees Retire Paul O'Neill's Number 21 - The New York Times
Yankees retire Paul O'Neill's No. 21 jersey - NBC Sports
How many jersey numbers do the Yankees have left? - Deseret News
The Yankees need to reissue Paul O`Neill's no. 21 - Pinstripe Alley
Why are the New York Yankees retiring Paul O'Neill's number 21 on August 21, 2022? What is your unedited opinion about it? - Quora
NY Yankees royalty honored as Paul O'Neill's No. 21 is retired
Paul O'Neill was 'tone-setter in our clubhouse,' former Yankees teammate Joe Girardi says - Newsday
Every MLB team's retired numbers – NBC Sports Chicago
Yankees to retire Joe Torre's number, honor Tino Martinez and Paul O'Neill - Sports Illustrated
Yankees finally show some fire, win on Paul O'Neill Day
Yankees to retire Paul O'Neill's No. 21 jersey on Aug. 21
New York Yankees Announce Retirement of Paul O'Neill's Number 21 – Celeb Secrets