 The victory gave Miami a 5-0 record, with Morrall building on that win to lead the team to the first undefeated regular season in the NFL since 1942 and only undefeated season ever, starting 11 out of 17 games that year.After notching a win in the team's first playoff game against the Cleveland Browns, Morrall struggled against the Pittsburgh Steelers in the AFC Championship game, leading to the return of Griese.Morrall would remain as a Dolphin quarterback for the next four seasons before finally announcing his retirement on May 2, 1977.