Why are MLB players wearing No. 42 jerseys today?

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

South Jersey coach teaches unity, history through Jackie Robinson

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

A number of nuggets about retired numbers around the Major League

MLB to Celebrate Jackie Robinson Day Today – NBC Los Angeles

Remembering Jackie Robinson's historic debut 75 years later - ABC News

Jackie Robinson Day Celebrations for 75th Anniversary of MLB Debut

Jackie Robinson Day Celebrations for 75th Anniversary of MLB Debut

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. (

Puerto Rican Twins don No. 21 in tribute to Roberto Clemente – Twin Cities