On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father
Ken Griffey Sr. and Jr. become the first father-son duo to ever play together
MLB Network on X: On this day in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father/son duo to play together in a Major League game! / X
In 1990, the Griffeys became the first father-son pair to play in the same Major League lineup
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Ken Griffey Jr. and Ken Griffey Sr are the first father and son combo to play in a major league game
On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history
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On This Day In Sports: August 31, 1990: Griffey Sr. and Jr. Become the First Father/Son Duo to Play Together in The Majors
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Baseball Sisco Kid Style: The Griffeys Play In The Same Game For First Time August 31, 1990