Why are MLB players wearing No. 42 jerseys today?

A's, Astros walk off field in protest, game postponed

Jackie Robinson Day 2020, All Players Wearing #42 and Patches Today – SportsLogos.Net News

Robinson's 42 In Dodger Blue For All Uniforms On April 15

Retired number, sports award

April 15, 1997: Ken Griffey Jr. wears number 42 to honor Jackie Robinson on 50th anniversary – Society for American Baseball Research

Jackie Robinson - Wikipedia

History of retired numbers dates back to Lou Gehrig Day

MLB to Celebrate Jackie Robinson Day Today – NBC Los Angeles

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

Jackie Robinson - Facts, Quotes & Stats

Cincinnati Reds on X: Let's take a look at the 2018 holiday and special event #RedsThreads! We'll start with Jackie Robinson Day on April 15 vs. STL, the 71st anniversary of Robinson

All players wearing 42 wrong way to honor Jackie

Jackie Robinson Day - Wikipedia

Players wear No. 42 on their jerseys in honor of Jackie Robinson Day during a baseball game between the Philadelphia Phillies and the New York Mets, Monday, April 15, 2019, in Philadelphia. (