The New York Yankees are running out of jersey numbers
Retired number - Wikipedia
Yankees Retired Numbers
Yankees want to stop issuing uniform numbers to managers, coaches because they're running out
Numbers up: Aaron Judge not the only Yankee in the 90s on his jersey - Newsday
Here are the Yankees' 21 retired numbers Who belongs and who doesn't? Andy Pettitte, Jorge Posada, Bernie Williams, more
Yankees Retired Numbers
Yankees Retired Numbers
Yankees move on from Alex Rodriguez with Joey Gallo's help
Paul O'Neill stunned Yankees are retiring his number