@nyanide @Goalkeeper he's the son of an mma fighter.
Apparently the bearded dude thought he was actually a wrestler so he tried to start a storyline by "crushing a can" on the black dude's head. Crushed most of it with his hand and was confused that black dude didn't react at all to sell the storyline. Black dude was supposed to be able to get a few "punches" off on him but just went absolutely ham instead.
Black dude and beard dude seemed to smooth things over without kayfabe before the fight but apparently not. Black dude said just before the incident that if he got to punch beard dude he would just keep swinging.

I really hope beard dude doesn't do the whole "I'm a good person so I'll forgive him" thing.