This site has taught me that no fighter no matter how impressive or great of legendary status is not unbeatable. He is a man, who bleeds, feels, thinks and is prone to making mistakes like the rest of us, that includes many of my favorites too. What tomorrow brings we do not know. In a boxing match many things happen, an accidental headbutt could create a bad cut, a fighter might get an upset stomach, get hit in the stomach and soil his pants. there are a ton of scenarios that could happen. So no one is infallible. Remember excuses are like peoples behinds, everyone has one.
I posted this in another thread and it applies here. Any version of Tyson was screwed up in the head. He's a lunatic and totally unpredictable. He might eat an ear. He might chew on a nose. He might lay on the canvas and take a nap. I wouldn't bet anything on him. STAY AWAY!