The Golden State Warriors showdown against the Milwaukee Bucks took a violent turn Wednesday night -- but not on the basketball court -- fans were brawling in the stands, and it got violent!
A fellow fan in the Chase Center recorded what looked to be three people involved in a fight ... though one guy appeared to do most of the punching, landing shot after shot on his opp.
While it's unclear what started the melee, the clip begins with a dude in a black shirt being put in a headlock by another man in a grey quarter-zip.