Paul O'Neill's number to be retired by Yankees
Yankees retire Paul O'Neill's No. 21 jersey, Cashman booed – KGET 17
Readers sound off on Yankees retired numbers, the GOP and the 9/11 Tribute Museum – New York Daily News
Yankees Retired Numbers - Who Are The 22 Yankees Who Wore Them
The Yankees Retire Paul O'Neill's Number 21 - The New York Times
Yankees retire Paul O'Neill's No. 21 jersey, Cashman booed, Highlands News-Sun
The Yankees Just Tarnished Their Legacy by Retiring Paul O'Neill's Jersey
New York Yankees Announce Retirement of Paul O'Neill's Number 21 – Celeb Secrets
Ask Pinstripe Alley 1/11/17: Will the Yankees ever retire Paul O'Neill's number? - Pinstripe Alley
Paul O'Neill's No. 21 to be retired by Yankees