San Diego Padres chairman and owner Peter Seidler has sadly died at 63 years old ... the team announced Tuesday.
Padres CEO Erik Greupner shared the heartbreaking news on social media .... saying in a statement Seidler was "beloved" in the org.
A cause of death was not revealed ... however, Seidler -- a two-time cancer survivor -- had undergone health issues recently, revealing in mid-September he had needed a medical procedure in August that would force him to miss the rest of his team's 2023 games.