With Mike's characteristics, I'm almost sure he will take this fight seriously. He'd bit that ear out of Jones if he can to win a fight for the last time in his life.
He'd bulldoze just anyone who'd get on his way up there. The only that will make it difficult for him is if he is still fit to fight. I haven't really seen their full posture but don't they all have big dad bod already?
There was some sayings stating that Tyson has been under treatment for manic-depression and that he was stopping the treatment before the fights.
So that's what was giving him all this energy when he's fighting