Brock Lesnar

Jon Kopaloff/Getty Images

Brock Lesnar

Power 100 rank: 96
Sport: UFC heavyweight fighter
Age: 32
Most recent notable achievement: UFC Heavyweight Champion
Earnings: NA
Key sponsors: Wildlife, Jack Links, Dymatize Nutrition

Why he's on the list: The professional wrestler-turned-WWE showman, took a hiatus from wrestling in '04-'05 to play football, only to return to fighting in the form of MMA. He is currently the UFC heavyweight champion and is an ideal fit for companies trying to get in touch with their tougher side.