Jackie Robinson Day, when MLB players can wear No. 42
All of MLB to wear Jackie Robinson's No. 42 in Dodger Blue on April 15 - ESPN
Robinson's 42 in Dodger blue for all uniforms on April 15
Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer
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42' shows why Jackie Robinson still matters
42 facts about Jackie Robinson to celebrate the 75th anniversary of his breaking the color barrier
Yankees are glad to be on the field for Jackie Robinson Day – New York Daily News
April 15, 1997: Ken Griffey Jr. wears number 42 to honor Jackie Robinson on 50th anniversary – Society for American Baseball Research
Mariners at forefront of establishing Jackie Robinson Day
Last player to wear No. 42 for each MLB team
