Alex Rodriguez Calls Out Yankees For Not Retiring His Number
What the Yankees' uniform number crunch could cost MLB's managers and coaches - The Athletic
Yankee Retired Numbers: The All-Time Numerical Lineup of Yanks
The second-best Yankee to wear each retired number - Part One - Pinstripe Alley
Yankees to retire Paul O'Neill's No. 21 on Aug. 21
What the Yankees' uniform number crunch could cost MLB's managers and coaches - The Athletic
Yankees make special request to MLB with franchise's 22 retired numbers causing logistical issue, per report
Yankees Retired Numbers
As Paul O'Neill's No. 21 Is Retired, One Last Kick of a Water Cooler - The New York Times
Here are the Yankees' 21 retired numbers Who belongs and who doesn't? Andy Pettitte, Jorge Posada, Bernie Williams, more