Mercury Morris -- RB, 1969-75

Eugene Edward Morris certainly had a memorable nickname, and through his very-public annual popping of champagne to celebrate the last team threatening the '72 Dolphins' undefeated record he has recently become as closely associated with their perfect season as any of the stars on that team. Let's take a look at what Morris contributed to the team, though ... well, Morris' best campaign was in 1972 when he rushed for exactly 1,000 yards, although even that took a plea from Don Shula to review a play from early in the season to bump him up from 991 yards. In 1973, Morris inherited the starting tailback role, and although he led the NFL with a healthy 6.3 yards-per-carry average, a year of being a bell cow back clearly took its toll, as injuries slowed him through the remainder of his NFL career. Morris played two more forgettable seasons in Miami before being traded to the Chargers in 1976. Throughout his early days in Miami, Morris was a malcontent, questioning Shula's decision to play Larry Csonka and Jim Kiick ahead of him. Later, Morris was infamously convicted of cocaine trafficking, which was overturned only after he spent three years in jail. While Morris certainly contributed plenty to the Dolphins dominance in the 1970s, his production doesn't match his reputation -- the very definition of an overrated player.