Key Facts Up Front
Former NFL quarterback Ryan Mallett died on February 2, 2021, at age 35. The cause was a heart attack, specifically cardiac arrest due to hypertrophic cardiomyopathy, a pre-existing heart condition. He was at a friend’s house in Spring, Texas, near Houston, when he collapsed. Emergency services were called but Mallett was pronounced dead at the scene. This status clarifier summarizes verified timelines and findings, focusing on when and why he died, to provide clear, durable information.