Seattle Mariners - On this day in 1989, Ken Griffey Jr. made his big league debut. The rest, as they say, is history. #OTD 🐐

1989 Mother's Cookies Ken Griffey Jr Ken Griffey Jr. (Bat Over Left Shoulder)

Old school cool. 😎 #MarinersST, #TBT - Seattle Mariners

Social Media Loved Seeing the Mariners Hall of Famers Involved in the Ceremonial First Pitches at All-Star Game - Fastball

History of the Seattle Mariners - Wikipedia

History of the Seattle Mariners - Wikipedia

The History of the Mariners (Part 2) Ken Griffey Jr. and his quest to save the Mariners (REACTION)

Seattle Mariners on Twitter: On this day in 1989, Ken Griffey Jr. made his big league debut. The rest, as they say, is history. #OTD 🐐 / Twitter

Rare early photos of Ken Griffey Jr.'s Mariners career

On this day in 1989: Griffey Jr. doubles in 1st MLB at-bat

Baseball Sisco Kid Style: The Griffeys Play In The Same Game For First Time August 31, 1990

Description Description This is a 1989 Upper Deck Rookie Card #1 that has been hand signed by Ken Griffey Jr. This is a Vintage Rookie Era Signature.

Ken Griffey Jr. Autographed 1989 Upper Deck Rookie Card #1 Seattle Mariners Vintage Rookie Era Signature Beckett BAS #14612436