Why don't the Miami Marlins have any retired numbers?
What the Yankees' uniform number crunch could cost MLB's managers and coaches - The Athletic
Bill Russell gets Miami Heat No. 6 honor before LeBron James
20 MLB players that could retire after the 2023 season
Some MLB Players Wearing #21, All Wearing 21 Patches Today for Roberto Clemente Day – SportsLogos.Net News
Hank Aaron, Biography, Baseball, & Facts
Fresno State Athletics to retire jerseys of Aaron Judge, Mike Batesole, College
Banks, Ernie #14 - Game Played Relic – Stadium Pen Blanks
Bill Russell's No. 6 Joins Rare Class of Retired Jersey Numbers - The New York Times
List of National Football League retired numbers - Wikipedia
History of retired numbers dates back to Lou Gehrig Day
Fresno State Athletics announces Judge, Batesole jersey retirement - Fresno State
Every MLB team's retired numbers
Retired Jerseys - Army West Point
Which NBA players have had their jersey retired by multiple franchises?