NY Yankees royalty honored as Paul O'Neill's No. 21 is retired
Have the NY Yankees retired too many numbers? - Quora
Uncle Mike's Musings: A Yankees Blog and More: July 2018
The Yankees need to reissue Paul O`Neill's no. 21 - Pinstripe Alley
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New York Yankees retired Paul O'Neill's No. 21 jersey
NY Yankees retire Paul O'Neill's No. 21
Paul O'Neill Number Retirement Raises Debate - Last Word On Baseball
Have the NY Yankees retired too many numbers? - Quora
New York Yankees to retire Paul O'Neill's jersey number during 2022 season - Sports Illustrated NY Yankees News, Analysis and More
Yankees to retire Paul O'Neill's No. 21: See the complete list of retired numbers
Paul O'Neill Number Retirement before Yankees vs. Blue Jays on Sunday, August 21, 2022
Yankees to retire Paul O'Neill's No. 21 on Aug. 21
Yankees to retire Torre's No. 6, leaving one single digit in pinstripes