![Baltimore Orioles on Twitter: "The #Orioles will join @MLB in honoring the legacy of Jackie Robinson by wearing No. 42 jerseys both today & tomorrow. #Jackie42 https://t.co/NiwxPbxekP" / Twitter Baltimore Orioles on Twitter: "The #Orioles will join @MLB in honoring the legacy of Jackie Robinson by wearing No. 42 jerseys both today & tomorrow. #Jackie42 https://t.co/NiwxPbxekP" / Twitter](https://pbs.twimg.com/media/D4Msv3KWwAMRjxI.jpg:large)
Baltimore Orioles on Twitter: "The #Orioles will join @MLB in honoring the legacy of Jackie Robinson by wearing No. 42 jerseys both today & tomorrow. #Jackie42 https://t.co/NiwxPbxekP" / Twitter
![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://www.masslive.com/resizer/UXYhxGZyg6l9Bh7b01qLVdYur-4=/1280x0/smart/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
![Cal Ripken Jr. Signed Orioles 34" x 42" Custom Framed Career Highlight Stat Jersey (JSA COA) | Pristine Auction Cal Ripken Jr. Signed Orioles 34" x 42" Custom Framed Career Highlight Stat Jersey (JSA COA) | Pristine Auction](https://images.pristineauction.com/68/685943/main_1498064193-Cal-Ripken-Jr-Signed-Orioles-34-x-42-Custom-Framed-Career-Highlight-Stat-Jersey-JSA-COA-PristineAuction.com.jpg)
Cal Ripken Jr. Signed Orioles 34" x 42" Custom Framed Career Highlight Stat Jersey (JSA COA) | Pristine Auction
![Lids Isiah Kiner-Falefa New York Yankees Fanatics Authentic Game-Used #42 Gray Jackie Robinson Day Jersey vs. Baltimore Orioles on April 15, 2022 | Brazos Mall Lids Isiah Kiner-Falefa New York Yankees Fanatics Authentic Game-Used #42 Gray Jackie Robinson Day Jersey vs. Baltimore Orioles on April 15, 2022 | Brazos Mall](https://cdn.mall.adeptmind.ai/https%3A%2F%2Fimages.footballfanatics.com%2Fnew-york-yankees%2Fisiah-kiner-falefa-new-york-yankees-game-used-number-42-gray-jackie-robinson-day-jersey-vs-baltimore-orioles-on-april-15-2022_pi4932000_altimages_ff_4932227-d437b395f70a96d8831balt1_full.jpg%3F_hv%3D2_large.webp)