Why are Boston Red Sox players all wearing No. 42 jerseys? Jackie

Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer

The Red Sox And All MLB Teams Celebrate Diversity On Jackie Robinson Day By Wearing #42

Photos: Red Sox take the field for picture-perfect 2022 Fenway opening day

Jackie Robinson - Wikipedia

Jackie Robinson Mitchell & Ness Nostalgia Co.

Last player to wear No. 42 for each MLB team

Number 42 - jersey number of Jackie Robinson - the only number to be retired across all MLB, at Boston Red Sox training facilility, Ft Myers, Florida Stock Photo - Alamy

Red Sox: Scenes From Fenway Park at Home Opener – NBC Boston

Robinson's jersey number shows up in baseball's statistical history, too

Major League Baseball celebrates Jackie Robinson Day – The Denver Post