Didn't Chris Cormier knock out Tyson when Chris was a bouncer or something?
The magazines tried to play it off like Tyson hit Cormier, and Chris wrestled him to the ground till they were broken apart. The real story told by his friends and folks that were there, is that Tyson smacked him roughly on the back of the head fucking around, and Cormier turned around, saw it was Tyson, decided he wanted no part of that, and the whole thing was laughed off.