May 2nd, 1989. Philadelphia's Veterans Stadium. Houston Astros in town.
In the first inning, Phillies third baseman Michael Jack Schmidt takes Jim Deshaise's fastball deep to left field for his 548th, and final, home run of his Hall of Fame career. The Phils go on to lose the game to the Astros 12-4.
Schmidt would go on to play in 18 more games before retiring on May 30th.