You can't really tell, but it looked like the other dude was just some obnoxious drunk guy. Before the scuffle the camera guy or someone behind the camera was telling the guy to fuck off. Drunk guy was as big as Joel, but no where near as fit. Maybe even taller. Weck took him down, and put the guy in a weird hold where it almost looked like he was trying to strangle the guy with his own arm. In that position he was able to hit the drunk dudes face a few times.
Looked like the guy had drunk strength though, and I don't think Joel wanted to actually go full in on the guy. Drunk guy some how squabbled his way on top of Weck, but someone pushed him off as drunk dudes girl came yelling and screaming "my poor piece of shit boyfriend." It was over after that and Weck had some more choice words for homeboy