List of Major League Baseball retired numbers - Wikipedia
Kansas City Royals - Wikipedia
List of NCAA football retired numbers - Wikiwand
Every MLB team's retired numbers
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Major League Baseball - Wikipedia
Rollie Fingers, Milwaukee Brewers Wiki
Houston Astros - Wikipedia
Bryce Harper - Wikipedia
Jackie Robinson - Wikipedia
Texas Rangers (baseball) - Wikipedia
List of National Football League retired numbers - Wikipedia
St. Louis Cardinals - Wikipedia
Retired Numbers, New York Mets Wiki