In the world of mixed martial arts, Brock Lesnar is a former UFC Heavyweight Champion. In the world of professional wrestling, Brock Lesnar is a former WWE World Heavyweight Champion. The MMA and pro wrestling star recently added another belt to his list: a blue belt under Comprido. This is quite the accomplishment for the combat sports legend and it also gives him yet another tool for his comeback fight against Mark Hunt at UFC 200. This man is still one of the most dangerous in the world, no matter what color his belt is.