Yankees retired numbers
How players are using uniform numbers to break MLB's unwritten rules - ESPN
Tennessee Retired Jerseys - University of Tennessee Athletics
Dodgers retired numbers: Other players to wear uniforms before honor - True Blue LA
The Greatest MLB Players of All Time to Wear Each Number from 1 to 50, News, Scores, Highlights, Stats, and Rumors
Mets to retire numbers for Doc Gooden and Darryl Strawberry – NBC New York
Retired Uniform Numbers in the National League
Jackie Robinson - Wikipedia
White Sox retire Baines' No. 3