On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history
Ken Griffey Sr. and Jr. become first father/son combo to appear in the same lineup
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Ken Griffey Sr. and Jr. become first father/son combo to appear in the same lineup
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On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history
