List of Major League Baseball retired numbers - Wikipedia
Last player to wear No. 42 for each MLB team
Baltimore Orioles - Wikipedia
Houston Astros - Wikipedia
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Kansas City Royals - Wikipedia
A number of nuggets about retired numbers around the Major League
Los Angeles Angels - Wikipedia
Oakland Athletics - Wikipedia
Cleveland Guardians - Wikipedia
List of Major League Baseball career OPS leaders - Wikipedia
List of NCAA football retired numbers - Wikiwand
Retired number - Wikipedia
Jackie Robinson Day - Wikipedia