Yankees retired numbers: A look at all of the jersey numbers players cannot wear in the Bronx
The Seattle Mariners need to retire number 51 for two Hall of Famers
Yankees Retired Numbers
Yankees Retired Numbers - Who Are The 22 Yankees Who Wore Them
Every MLB team's retired numbers
Jude Bellingham: Birmingham City Retire Number 22 Shirt After Transfer
Retired number - Wikipedia
Retired number - Wikipedia
History of retired numbers dates back to Lou Gehrig Day
What the Yankees' uniform number crunch could cost MLB's managers and coaches - The Athletic
Atlanta Braves retire Andruw Jones' No. 25 jersey. Cooperstown next for smooth center fielder?
Pittsburgh Pirates - Wikipedia
Southern California teams' retired numbers – Orange County Register
Has the NFL Ever Retired a Player's Jersey Number League-Wide?