![Today In 1990: Ken Griffey & Ken Griffey Jr. of the Seattle Mariners hit back-to-back singles as the first father-son duo to play in the same major league lineup!](https://upload.wikimedia.org/wikipedia/commons/thumb/a/a7/Ken_Griffey_Jr._-_San_Bernardino_Spirit_-_1988.jpg/170px-Ken_Griffey_Jr._-_San_Bernardino_Spirit_-_1988.jpg)
Ken Griffey Jr. - Wikipedia
![Today In 1990: Ken Griffey & Ken Griffey Jr. of the Seattle Mariners hit back-to-back singles as the first father-son duo to play in the same major league lineup!](https://andscape.com/wp-content/uploads/2016/08/ap_9008310113.jpg?w=640)
Ken Griffey Sr. and Jr. become the first father-son duo to ever play
![Today In 1990: Ken Griffey & Ken Griffey Jr. of the Seattle Mariners hit back-to-back singles as the first father-son duo to play in the same major league lineup!](https://townsquare.media/site/535/files/2023/07/attachment-Elias-D%25C3%25ADaz.jpg)
All-Star Game-National League Captures MLB Mid-Summer Classic
![Today In 1990: Ken Griffey & Ken Griffey Jr. of the Seattle Mariners hit back-to-back singles as the first father-son duo to play in the same major league lineup!](https://townsquare.media/site/150/files/2022/10/attachment-GettyImages-1422071805.jpg)
Report: Carlos Correa Opting Out of Contract with Minnesota Twins
![Today In 1990: Ken Griffey & Ken Griffey Jr. of the Seattle Mariners hit back-to-back singles as the first father-son duo to play in the same major league lineup!](https://townsquare.media/site/675/files/2023/09/attachment-Cedar-Rapids-Kernels.jpg)
Unique Situation to Determine Midwest League Title in CR Tonight
![Today In 1990: Ken Griffey & Ken Griffey Jr. of the Seattle Mariners hit back-to-back singles as the first father-son duo to play in the same major league lineup!](https://staticg.sportskeeda.com/editor/2022/11/ff4cf-16693035648722-1920.jpg?name=small)
Which duo was the first ever father-son pair to play on the same
![Today In 1990: Ken Griffey & Ken Griffey Jr. of the Seattle Mariners hit back-to-back singles as the first father-son duo to play in the same major league lineup!](https://i.pinimg.com/736x/20/ac/d5/20acd5421a0cdab9cc0e3047a35df8cc.jpg)
Pin on Griffey Jr.
![Today In 1990: Ken Griffey & Ken Griffey Jr. of the Seattle Mariners hit back-to-back singles as the first father-son duo to play in the same major league lineup!](https://townsquare.media/site/535/files/2023/07/attachment-Seattle-Mariners-celebrate.jpg)
Seattle Mariners Get Clutch Win Over Minnesota Twins
![Today In 1990: Ken Griffey & Ken Griffey Jr. of the Seattle Mariners hit back-to-back singles as the first father-son duo to play in the same major league lineup!](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/wpkdyeibhjho48wightd)
Ken Griffey Jr. and Sr. hit back-to-back home runs
![Today In 1990: Ken Griffey & Ken Griffey Jr. of the Seattle Mariners hit back-to-back singles as the first father-son duo to play in the same major league lineup!](https://www.sportsofyore.com/wp-content/uploads/2019/07/anaheim-1-1024x341.png)
The day a dad and son hit back-to-back homers for the same team
![Today In 1990: Ken Griffey & Ken Griffey Jr. of the Seattle Mariners hit back-to-back singles as the first father-son duo to play in the same major league lineup!](http://rvgfanatic.com/wordpress/wp-content/uploads/2017/06/KenGriff1d.png)
Ken Griffey Jr. Presents Major League Baseball (SNES)
![Today In 1990: Ken Griffey & Ken Griffey Jr. of the Seattle Mariners hit back-to-back singles as the first father-son duo to play in the same major league lineup!](http://rvgfanatic.com/wordpress/wp-content/uploads/2017/06/KenGriff6.jpg)
Ken Griffey Jr. Presents Major League Baseball (SNES)
![Today In 1990: Ken Griffey & Ken Griffey Jr. of the Seattle Mariners hit back-to-back singles as the first father-son duo to play in the same major league lineup!](https://brobible.com/wp-content/uploads/2023/09/Ken-Griffey-Jr.-and-Sr.jpg?w=650)
Ken Griffey Jr. And His Dad Once Hit Back-To-Back Home Runs