Ken Griffey Jr. had Jackie Robinson Day idea

Jackie Robinson Day: Baseball's Stage of Equality

Every MLB team's retired numbers – NBC Sports Chicago

Jackie Robinson and black parents across the U.S.

Big Red: Baseball, Fatherhood, and My Life in the Big Red Machine: 9781600785443: Griffey, Ken, Pepe, Phil, Foster, George: Books

I think we making Jackie proud today': Mariners' Dee Gordon on being Black in baseball on MLB's Jackie Robinson day

Put No. 42 in the game

No. 42 jersey tribute began in 2007 with Griffey

Jackie Robinson Day - Wikipedia

MLB HITTING MECHANICS on Instagram: Griffey was the inspiration behind everyone wearing #42 on Jackie Robinson Day🔥💯🚀 . . . #baseball #baseballlife #baseballfans #baseballboys #baseballgame #baseballseason # kengriffeyjr #jackierobinson

Hunter Greene, Art Warren thrilled for Jackie Robinson Day vs. Dodgers

Ken Griffey Jr. and T-Mobile Go to Bat for Black Ballplayers

Jackie Robinson Day: Baseball Celebrates a Pioneer, but Should Strive for More, News, Scores, Highlights, Stats, and Rumors

Cincinnati Reds - April 15, 2007: Ken Griffey Jr. dons No. 42 in honor of Jackie Robinson after receiving consent from then-Commissioner Bud Selig and Robinson's widow, Rachel. Selig then encourages all

Jackie Robinson Day (2004-2022)

Ken Griffey Jr's groundbreaking idea inspired Jackie Robinson Day