NEW YORK—Dean Meminger, the former Marquette guard who played a reserve role on the New York Knicks’ 1973 NBA championship team, was found dead Friday in a Manhattan hotel room. He was 65.

New York City police said staff at the Hamilton Heights Hotel found Meminger unconscious and unresponsive inside a room and emergency medical personnel pronounced him dead. Police said there were no signs of trauma and that the cause of death hadn’t been determined. They said an investigation is ongoing.