Santa Clara Police Investigating After Viral Video of Fight Outside Levi's Stadium; 11 Arrests Made at Sunday Game

There was a fight, possibly between 49ers fans and Raiders fans, or just among 49ers fans, that was caught on video in the parking lot outside Levi's Stadium on Sunday. The formerly Oakland now Las Vegas Raiders were back in town for a Sunday afternoon game against the San Francisco 49ers, and while it was far from an even match — the Niners routed the Raiders 38-17 — many expected that old rivalry sentiments would be reawakened around the Bay between the two fanbases. It's not clear if that former rivalry had anything to do with the fistfight that became a brawl outside the stadium, and was caught on video, apparently after the game was over. In the video, seen below, one many is almost immediately knocked unconscious by another, but that prompts another man to jump in and knockout the initial attacker, leaving two men on the ground, as a brawl starts erupting around them. The caption on the video is "49ers vs raiders fan fight" though it's not clear from what the first two men were wearing who was who. The text on the video also says "Entertaining purposes only," but this doesn't appear to have been staged? View this post on Instagram A post shared by PHIL BLUFORD (@frisco_phillyb4x) Hopefully, no one was seriously injured. The condition of the men knocked to the ground is not known. As the Chronicle reports , the Santa Clara Police Department issued a statement Sunday saying they were "aware of a video circulating online of an assault that occurred outside the stadium today," and "This incident is part of an active and ongoing investigation." The department also confirmed that it had made 11 arrests at the Niners-Raiders game, with seven people arrested for public intoxication, and four others arrested on suspicion of fighting in a public place. It was not yet clear Monday afternoon whether any of those four were among the individuals seen in the viral video. Additionally, 45 people were ejected from Sunday's game due to bad behavior. Anyone with information or anyone who witnessed the fight is asked to call 408-615-4700 or to leave an anonymous tip at 408-615-4847. Santa Clara police issued a statement saying, "Incidents of violence at large-scale events in Santa Clara will not be tolerated." Bay Area fans are no strangers to fan brawls, with a large brawl having broken out in the stands at Levi's three seasons ago, during a Niners-Broncos game. There was also a notable brawl among multiple intoxicated-seeming people at a Giants game in July, which was also caught on video. Tragically, a fight between Giants and Dodgers fans in Los Angeles in 2011 left Giants fan Bryan Stow with a permanent traumatic brain injury . *This post has been updated with information about the arrests.