The preseason game between San Francisco 49ers and Denver Broncos descended into chaos when a big brawl broke out in the stands between the fans.

As the 49ers and Broncos battled it out on the field, a fight ensued among the spectators at the Levi’s Stadium. Although it is rare to see fans from the same team get in a nasty brawl, such a sight unfolded on Saturday, which ultimately ended in a knockout.

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According to Outkick, a Broncos fan also got into the mix for a bit as the brawl started but he was quickly sidelined and the main fight continued between fans of the same team. On Saturday night the fight got messy fast, as one saw lots of pushing, shouting and confusion before blows were exchanged. Some zoomed photos showed a man bleeding from the mouth and his white t-shirt covered in dark, red droplets.

A guy in a Jerry Rice jersey began punching a guy wearing a white t-shirt. He was seen punching his face several times during the fight till one of the blows finally knocked the guy out. The guy was knocked back into a chair. After the fight ended and the situation calmed down, he got on his feet, trying not to collapse with blood on his mouth and shirt.

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The staff working there helped get the guy out of the stands, as he struggled to take the stairs. There are no reports so far of any arrests being made in connection to Saturday’s fight, or any police complaints made in that regard.

The 49ers won 21-20 against the Broncos on Saturday. The performance of 49er’s quarterback, Trey Lance, was appreciated by fans online. He had three consecutive scoring drives that were capped off by a game-winning field goal to seal the 49ers’ first win of the preseason. Lance finished with a game-high 173 yards on 12-of-18 passing along with a touchdown and an interception. Lance finished with a 93.0 passer rating.