Michael Vick
It’s fair to say that Vick changed the sport when he played for the Atlanta Falcons. He wasn’t the first rushing quarterback but he was the best that fans had ever seen. The former Virginia Tech star was brilliant during his time in Georgia and was on course for a Hall of Fame career. But then a federal investigation uncovered his notorious dogfighting ring.

Vick broke his fans’ hearts on and off the field. Diehard football fans couldn’t believe that he betrayed the franchise and left them in the doldrums. Meanwhile, decent people thought that his behavior was horrific and couldn’t support him anymore. Vick made an NFL comeback but there was always an asterisk next to his name (via MSN).