Former UFC heavyweight champion, and current fighter in professional wrestling, Brock Lesnar spoke in the "Stone Cold" on its disease, which shattered his career in MMA. Brock Lenar: his career in pro wrestling began in 2000 and continued it with a break at the NFL until 2006, when he decided to pursue a career in MMA. The first battle he fought in 2007 at event Dynamite !! (US co-created by FEG and EliteXC) and he defeated then by Submission (Strikes) Min Soo Kim in the first round. In the next fight already under the banner of the UFC he lost on his debut against Frank Mir. The next came four combat victories with Heath Herring, Randy Couture, Frank Mir and Shane Carwin. Finally he won the fight with Couture and got the heavyweight title. The crisis came along with the fight against Cain Velasquez, who took his belt. Next fight he lost against Alistair Overeem. After this fight, Lesnar announced his retirement, the reason was health problems and then he added: "this night you see me for the last time in the Octagon." In 2012, Brock Lesnar solved his health problems and returned to WWE where he is successfully to this day.