Griffeys hit back-to-back home runs in 1990 9/14/90: Ken Griffey Jr. follows his father's homer with one of his own, making them the first father/son tandem to connect in the same game #KenGriffeyJr #1990s #highlightreel #MajorLeagueBaseball #homerun #Baseball #highlight #MLB #KenGriffey #milestone #MajorLeague #SeattleMariners #MLBVault #Classic #1990 #1990Griffeys
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