1. Greg Hardy
The most controversial fighter on this list, Hardy is an active fighter on the UFC roster today. The former Carolina Panthers and Dallas Cowboys defensive end had genuine hopes of a long and successful career in the NFL. But then he ran into legal difficulties after allegedly battering his girlfriend and threatening to kill her.
That made him untouchable for NFL teams. After turning to MMA, he got a shot on “Dana White’s Contender Series.” He’s had an up-and-down career so far, while the promotion has been criticized for pushing him so hard. In short, Hardy is not popular.
