L.A. Rams retired jersey numbers: Stars from the past left to consider - Turf Show Times
Should the Celtics unretire numbers for current players to wear? - The Boston Globe
Will the Clippers Ever Retire Chris Paul's Number? - The Ringer
NBA Players Who Should Have Their Jersey Retired: LeBron James By 3 Teams, Kevin Durant By 2 Teams - Fadeaway World
List of NCAA men's basketball retired numbers - Wikipedia
History of retired numbers dates back to Lou Gehrig Day
Why the Miami Heat retired Michael Jordan's jersey - Sports Illustrated Chicago Bulls News, Analysis and More
What Cavaliers should have their jersey retired? - Fear The Sword
Retired Jerseys - Army West Point
Has the NFL Ever Retired a Player's Jersey Number League-Wide?
History of retired numbers dates back to Lou Gehrig Day
Would Celtics re-issue retired numbers? Don't count on it – Boston Herald
James Madison University's retired football jerseys
Retired Jerseys - BYU Athletics - Official Athletics Website - BYU Cougars