Padre reliever Trevor Hoffman, brother of opposing manager Glenn Hoffman, saves the Padres’ 4 – 1 victory over the Dodgers. It’s the first time in major league history a player has faced his brother as a manager.

On July 11, 1998Padre reliever Trevor Hoffman, brother of opposing manager Glenn Hoffman, saves the Padres’ 4 – 1 victory over the Dodgers. It’s the first time in major league history a player has faced his brother as a manager.

Source
Baseball Reference July 11