In a 15-3 rout of the Indians at Jacobs Field, Chris Hoiles becomes the ninth player in major league history and the only catcher to hit two grand slams in the same game. The Orioles backstop goes yard with the bases full in the third inning off Charles Nagy and does it again in the eighth off Ron Villone.

This Day In Baseball

On August 14, 1998 — In a 15-3 rout of the Indians at Jacobs Field, Chris Hoiles becomes the ninth player in major league history and the only catcher to hit two grand slams in the same game. The Orioles backstop goes yard with the bases full in the third inning off Charles Nagy and does it again in the eighth off Ron Villone.

Source:
Baseball Reference August 14
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