As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times

New York Yankees retire Paul O'Neill's No. 21; GM Brian Cashman, owner Hal Steinbrenner booed by fans - ESPN

Paul O'Neill Ejections

NY Yankee Paul O'Neill's No. 21 to be retired on Aug. 21

As Paul O'Neill's No. 21 is retired, one last kick of a water cooler

How is Krista Ciglar/Tommy O'Neill doing? - Quora

Yankees retire Paul O'Neill's No. 21 jersey, Cashman booed

Town Topics Newspaper, October 21, 2020 by Witherspoon Media Group - Issuu

Paul O'Neill Yankees No. 21 retired

Paul O'Neill Yankees No. 21 retired

Paul O'Neill Number Retirement before Yankees vs. Blue Jays on Sunday, August 21, 2022