![Griffey stars in debut for Mariners](https://h2j7w4j4.stackpathcdn.com/wp-content/uploads/2021/10/1990-Ken-Griffey-Sr-Jr-216x300.jpg)
August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in father-son debut with Mariners – Society for American Baseball Research
![Griffey stars in debut for Mariners](https://www.patriotledger.com/gcdn/authoring/2010/06/03/NPAL/ghows-WL-a90abeae-74f7-494a-9987-44b6ce53060b-7094fa30.jpeg)
Ken Griffey Jr. retiring from Major League Baseball at age 40
![Griffey stars in debut for Mariners](https://ansel.frgimages.com/seattle-mariners/ken-griffey-jr-1989-topps-major-league-debut-rc-number-46-seattle-mariners!_ss2_p-13645301+pv-1+u-1fs54g11n2tp64bod082+v-kytqedlycjwltngvvgfz.jpg?_hv=2&w=900)
Ken Griffey Jr 1989 TOPPS MAJOR LEAGUE DEBUT RC #46 SEATTLE MARINERS!
![Griffey stars in debut for Mariners](https://www.the-sun.com/wp-content/uploads/sites/6/2023/10/ken-griffey-jr-24-seattle-851474532.jpg)
I'm a 13-time MLB All-Star and found fame on The Simpsons - despite retiring in 2010 I'll be paid $3.5m this year
![Griffey stars in debut for Mariners](https://miro.medium.com/v2/resize:fill:1200:632/g:fp:0.49:0.29/1*Fkm-0n9H-FAE0dbyBm4m0g.jpeg)
On This Date: Ken Griffey Jr. Makes Major League Debut, by Mariners PR
![Griffey stars in debut for Mariners](https://baseballhall.org/sites/default/files/Griffey.png)
Griffey Jr., Ken Baseball Hall of Fame
![Griffey stars in debut for Mariners](https://img.mlbstatic.com/mlb-images/image/private/ar_16:9,g_auto,q_auto:good,w_1024,c_fill,f_jpg,dpr_3.0/mlb/yuzyrgmuhugcpvwllc0s)
Ken Griffey Jr. hit his first homer on the first pitch he saw at the Kingdome -- on his dad's birthday
![Griffey stars in debut for Mariners](http://res.cloudinary.com/ybmedia/image/upload/c_crop,h_675,w_1200,x_0,y_11/c_fill,f_auto,h_900,q_auto,w_1600/v1/m/9/7/972a592e24af126e5673cde89fc189e667b556a5/usatsi_21496698.jpg)
Seattle Mariners Legend Ken Griffey Jr. Makes Debut as NFL Sideline Photographer
![Griffey stars in debut for Mariners](https://images.mlssoccer.com/image/private/t_q-best/mls-sea-prd/lfonnnryzyohtip60nwj.jpg)
Seattle sports legend Ken Griffey Jr. and wife, Melissa, become latest members of Sounders Family