![No. 42 jersey tribute began in 2007 with Griffey](https://www.usatoday.com/gcdn/presto/2018/08/10/PCIN/1c2b0626-d298-42bc-96be-e7d06412db0a-AP_04061205216.jpg?width=1200&disable=upscale&format=pjpg&auto=webp)
Ken Griffey Jr. will take dad if LeBron James, Bronny play in NBA game
![No. 42 jersey tribute began in 2007 with Griffey](https://upload.wikimedia.org/wikipedia/en/thumb/2/29/MLB-ALW-SEA-Uniform.png/275px-MLB-ALW-SEA-Uniform.png)
Seattle Mariners - Wikipedia
![No. 42 jersey tribute began in 2007 with Griffey](https://img.mlbstatic.com/mlb-images/image/private/t_16x9/t_w1024/mlb/c98grb4lfticirwugnbv)
Ken Griffey Jr. had Jackie Robinson Day idea
![No. 42 jersey tribute began in 2007 with Griffey](https://www.backes-auction.com/uploads/auctions/photos/703-148-1-f.png)
Auction Details Backes Auctioneers
![No. 42 jersey tribute began in 2007 with Griffey](https://live.staticflickr.com/65535/50354350297_25e2fb5871_b.jpg)
Ken Griffey Jr Price List - Supercollector Catalog
![No. 42 jersey tribute began in 2007 with Griffey](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b3/Adrian_Beltre_%2850294917497%29_%28cropped%29.jpg/1024px-Adrian_Beltre_%2850294917497%29_%28cropped%29.jpg)
Uniform number (Major League Baseball) - Wikiwand
![No. 42 jersey tribute began in 2007 with Griffey](https://townsquare.media/site/656/files/2023/05/attachment-GettyImages-1414839016.jpg)
Reactions to Akil Baddoo's Unfortunate Attempt To Steal Second
![No. 42 jersey tribute began in 2007 with Griffey](https://i.ytimg.com/vi/GAa6FyfL-SQ/oar2.jpg?sqp=-oaymwEYCJUDENAFSFqQAgHyq4qpAwcIARUAAIhC&rs=AOn4CLBIrwyXd_jgAq4ozm6IO-kl9_4r3w)
Ken Griffey Jr. Started Wearing 42 on Jackie Robinson Day! #shorts
![No. 42 jersey tribute began in 2007 with Griffey](https://upload.wikimedia.org/wikipedia/commons/thumb/4/42/Jrobinson.jpg/800px-Jrobinson.jpg)
Jackie Robinson Day - Wikipedia
![No. 42 jersey tribute began in 2007 with Griffey](https://sabrbaseballcards.files.wordpress.com/2021/07/p7269747.jpg)
On the alluring promise of an unopened pack – SABR's Baseball
![No. 42 jersey tribute began in 2007 with Griffey](https://img.mlbstatic.com/mlb-images/image/private/t_16x9/t_w1024/mlb/xr6gwzhisv1bn8zm5gbv)
Ken Griffey Jr. had Jackie Robinson Day idea
![No. 42 jersey tribute began in 2007 with Griffey](https://www.thenewstribune.com/sports/mlb/seattle-mariners/xz5m14/picture94211687/alternates/LANDSCAPE_1140/mariners_griffey_0806_1)
Mariners pull out all stops in ceremony to retire Ken Griffey Jr
![No. 42 jersey tribute began in 2007 with Griffey](https://static01.nyt.com/images/2007/04/13/sports/13jackie.1.190.jpg?quality=75&auto=webp&disable=upscale)
A Measure of Respect for Jackie Robinson Turns Into a Movement
![No. 42 jersey tribute began in 2007 with Griffey](https://upload.wikimedia.org/wikipedia/commons/thumb/6/60/Jamie_Moyer_Phillies.JPG/640px-Jamie_Moyer_Phillies.JPG)
Jamie Moyer - Wikipedia
![No. 42 jersey tribute began in 2007 with Griffey](https://lifetimetopps.files.wordpress.com/2013/02/1998-topps-pack-and-griffey.jpg)
1998 Topps Overview Lifetime Topps project