Ken Griffey Sr. and Ken Griffey Jr. hit back to back home runs for the Seattle Mariners on September 14,1990. It was the first and only time in Major League history that a father and son have hit back to back homers.
The Mariners were playing the Angels that night at Anaheim Stadium. (The Angels wound up winning the game, 7-5, in case that matters to you.) Griffey Sr., at the age of 40, started the game for the Mariners in left field, batting second. Junior was in center field, batting third. (Yeah, maybe it was a little bit of a setup.) In the first inning, after Kirk McCaskill walked Harold Reynolds, Griffey Sr. homered to left center. Junior met him at the plate and then made history, hitting another ball out of the park, almost to same spot.
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