When Tyson was able to control himself he was the best heavyweight out there. However, as soon as he lost control, he basically gave up any rights he should have to fight in any sanctioned contest on the planet.
Just wait, he is going to literally KILL somebody some day...probably sooner than later. And I am not talking IN the ring. No, some idiot will try to start something with him just to get leverage to sue, and Tyson will beat him to death...or her?