Why every MLB player will wear the same number Tuesday

(NEXSTAR) — Every MLB player, regardless of team or position, will be wearing the exact same jersey number on Tuesday. So will their coaches and, undoubtedly, many fans.
Tuesday, April 15, is also the only day you'll see players or coaches wearing this number: No. 42.
It's all part of Jackie Robinson Day, which honors the day Jackie Robinson broke baseball's color barrier in 1947 as he took the field for the Brooklyn Dodgers. While those playing in the MLB weren’t even alive whe