Why are Boston Red Sox players all wearing No. 42 jerseys? Jackie Robinson day across the MLB

Every MLB team's retired numbers – NBC Sports Chicago

Washington Nationals Prehistory: Jackie Robinson's Time In Montreal

MLB allows more players to wear No. 21 to honor Roberto Clemente – NBC Sports Chicago

Why are MLB players wearing No. 42 jerseys today?

Jackie Robinson Day: Every MLB player will wear No. 42 to honor baseball icon

Retired number, sports award

Red Sox notebook: On Jackie Robinson Day, Alex Cora wants his team to play the right way

Red Sox acknowledge uncomfortable reality on Jackie Robinson Day: No Black players on the roster - The Boston Globe

Jackie Robinson Day kicks off with Red Sox, Rays sporting No. 42 at Fenway Park

After Jackie Robinson, MLB integration was halting - The Washington Post

New York Yankees Aaron Judge, wearing jersey number 42 on Jackie Robinson Day, watches his fly ball to the wall during the first inning of a Major League baseball game against the

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

Major League Baseball celebrates Jackie Robinson Day – The Denver Post

Jackie Robinson honored across Major League Baseball on Wednesday