Why are MLB players wearing No. 42 jerseys today?
April 15, 1997: Ken Griffey Jr. wears number 42 to honor Jackie Robinson on 50th anniversary – Society for American Baseball Research
Images of the Nike Dunk Low 'Jackie Robinson' Have Emerged
Dodgers to Kick Off Opening Season with Tribute to Jackie Robinson
All MLB Players to Wear No. 42 in Dodger Blue on Jackie Robinson Day
Charlie Blackmon, Rockies appreciate 75th anniversary of Jackie Robinson's debut
Celebrate Jackie Robinson's Legacy in Los Angeles
All MLB Teams Wearing No. 42 In Dodger Blue On Jackie Robinson Day
Jackie Robinson MLB Fan Jerseys for sale
MLB players to wear #42 Monday to honor Jackie Robinson Day
UCLA honors Jackie Robinson Day with throwback jerseys
Jackie Robinson Day Recap
Last player to wear No. 42 for each MLB team