(Content warning: Video above contains violence)

It might have been a preseason game, but some fans at Levi’s Stadium were taking things a little too seriously during the 49ers-Broncos exhibition on Saturday.

A video of a wild brawl in the stands went viral, featuring what appeared to be some 49er fan on 49er fan violence that included a few massive haymakers connecting.

A fan in a Jerry Rice jersey in particular starts going wild on a guy in a white t-shirt, and appears to hit his face multiple times. The fan can be seen later bleeding from the mouth.

This might make for “good content” but it’s more than a little silly and quite dangerous to let emotions get to this point during a football game. Hopefully everybody got their aggression out before the regular season.