On August 6, 1992 — Padres Gary Sheffield and Fred McGriff become the first teammates to swat back-to-back home runs twice in the same game since Ernie Banks and Dee Fondy of the Cubs in 1955. The Padres win the game over the Astros, 7 – 5.
Source:
Baseball Reference August 6
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game