Donald Francis Shula (January 4, 1930 – May 4, 2020) was an American professional football player and coach who served as a head coach in the National Football League (NFL) from 1963 to 1995. He played seven seasons as a defensive back in the NFL. The head coach of the Miami Dolphins for most of his career, Shula is the NFL's winningest head coach at 347 career victories and 328 regular season victories. His first Super Bowl title during 1972 is the only perfect season in NFL history. Shula is regarded as one of the greatest coaches in NFL history.