In all honesty, I don't put much into the knee injury story from the Williams loss. Mike walked out of the fight fine like Williams said, then used it as an excuse. Yes, you can see him sort of hurt his knee in the fight, but it was not a HUGE deal. Mike threw everything he had at a very determined Williams, who survived it, then hurt Tyson, who was not nearly as up for the fight or determined as Williams and Mike essentially said "Fuk it" and quit. It is what it is.