As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
The New York Times 2016-02-10, PDF, Bernie Sanders
Paul O'Neill on No. 21 retirement Yankees
In celebration of Paul O'Neill Day, 21 Yankees GIFs to remember #21 - Pinstripe Alley
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As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
Calaméo - MARCH 24, 1994
Eyes on San Diego: San Diego Loyal's final game - The San Diego Union-Tribune
Paul O'Neill will finally have number retired by Yankees
Town-Crier Newspaper July 15, 2022 by Wellington The Magazine LLC - Issuu
New York Yankees retired Paul O'Neill's No. 21 jersey
Paul O'Neill's No. 21 Jersey to Be Retired by Yankees on August 21, News, Scores, Highlights, Stats, and Rumors