![Seattle Mariners players honor Jackie Robinson by wearing the number 42 on their jerseys, as they stand for the national anthem before a baseball game against the Los Angeles Angels in Anaheim, Seattle Mariners players honor Jackie Robinson by wearing the number 42 on their jerseys, as they stand for the national anthem before a baseball game against the Los Angeles Angels in Anaheim,](https://c8.alamy.com/comp/2MG63WH/seattle-mariners-players-honor-jackie-robinson-by-wearing-the-number-42-on-their-jerseys-as-they-stand-for-the-national-anthem-before-a-baseball-game-against-the-los-angeles-angels-in-anaheim-calif-saturday-aug-29-2020-ap-photoalex-gallardo-2MG63WH.jpg)
Seattle Mariners players honor Jackie Robinson by wearing the number 42 on their jerseys, as they stand for the national anthem before a baseball game against the Los Angeles Angels in Anaheim,
![MLB players to wear No. 42 — in Dodger blue — for 75th anniversary of Jackie Robinson's big league debut MLB players to wear No. 42 — in Dodger blue — for 75th anniversary of Jackie Robinson's big league debut](https://cloudfront-us-east-1.images.arcpublishing.com/tronc/PEWFESQ3CAGEB24SYDWPEXCJHA.jpg)
MLB players to wear No. 42 — in Dodger blue — for 75th anniversary of Jackie Robinson's big league debut
![On this day: 42 years ago, No. 42 Jackie Robinson called for change in baseball – The Suffolk Journal On this day: 42 years ago, No. 42 Jackie Robinson called for change in baseball – The Suffolk Journal](https://thesuffolkjournal.com/wp-content/uploads/2014/10/42Color-500x312.jpg)
On this day: 42 years ago, No. 42 Jackie Robinson called for change in baseball – The Suffolk Journal
National Baseball Hall of Fame and Museum - In baseball, the number 42 will forever hold a special weight. Jackie Robinson's number was permanently retired in 1997, making him the first player
![Jackie Robinson becomes first African American player in Major League Baseball | April 15, 1947 | HISTORY Jackie Robinson becomes first African American player in Major League Baseball | April 15, 1947 | HISTORY](https://assets.editorial.aetnd.com/uploads/2012/05/this-day-in-history-04-15-1947-jackie-robinson-plays-ball.jpg)
Jackie Robinson becomes first African American player in Major League Baseball | April 15, 1947 | HISTORY
![Why are Boston Red Sox players all wearing No. 42 jerseys? Jackie Robinson day across the MLB - masslive.com Why are Boston Red Sox players all wearing No. 42 jerseys? Jackie Robinson day across the MLB - masslive.com](https://arc-anglerfish-arc2-prod-advancelocal.s3.amazonaws.com/public/MVEXC5N62JHDZOU3ARNO6JGKTI.jpg)
Why are Boston Red Sox players all wearing No. 42 jerseys? Jackie Robinson day across the MLB - masslive.com
![MLB Communications on Twitter: "On @MLB platforms today, all players will wear number 42 to observe Jackie Robinson Day. https://t.co/K6GO20oU0C" / Twitter MLB Communications on Twitter: "On @MLB platforms today, all players will wear number 42 to observe Jackie Robinson Day. https://t.co/K6GO20oU0C" / Twitter](https://pbs.twimg.com/media/EVpyTtxUwAI4WjS.jpg)