Why every MLB player is wearing No. 42 today
April 15, 1997: Ken Griffey Jr. wears number 42 to honor Jackie Robinson on 50th anniversary – Society for American Baseball Research
MLB celebrates Jackie Robinson
MLB allows more players to wear No. 21 to honor Roberto Clemente – NBC Sports Chicago
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Jackie Robinson Day 2022: Why are all the 42 numbers blue? - Deseret News
The Top Current MLB Player Wearing Each Number from 1 to 50, News, Scores, Highlights, Stats, and Rumors
Why are MLB players wearing No. 42 jerseys today?
The only day MLB players can wear No. 42? Jackie Robinson Day
After Jackie Robinson, MLB integration was halting - The Washington Post
Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer
The only day MLB players can wear No. 42? Jackie Robinson Day
VOICES: Jackie Robinson Day is much bigger than baseball - The Atlanta Voice
All MLB players to wear No. 42 in Dodger blue on Apr. 15
Jackie Robinson Day 2023: MLB players, teams and legends pay tribute to Jackie Robinson's legacy