List of Major League Baseball retired numbers - Wikipedia
How players are using uniform numbers to break MLB's unwritten rules - ESPN
History of retired numbers dates back to Lou Gehrig Day
Seattle Mariners - Wikipedia
Lakers News: First Great Lakers Center Will Have Jersey Posthumously Retired - All Lakers
Last player to wear No. 42 for each MLB team
Bill Russell gets Miami Heat No. 6 honor before LeBron James
The Greatest MLB Players of All Time to Wear Each Number from 1 to 50, News, Scores, Highlights, Stats, and Rumors
Retired numbers in Phillies team history Phillies Nation - Your source for Philadelphia Phillies news, opinion, history, rumors, events, and other fun stuff.
Yankees Retired Numbers
Next retired number for every MLB team
The next likely jersey retirement for every NFL team
History of retired numbers dates back to Lou Gehrig Day
Bill Russell's No. 6 jersey to be retired throughout NBA
Retired Uniform Numbers in the National League