(KRON) -- A football fan who attended Sunday’s San Francisco 49ers vs. Las Vegas Raiders game at Levi’s Stadium in Santa Clara has been arrested in connection to a fight that went viral on social media. The video shows a man punching and kicking an unconscious person in the stadium's parking l ot. Authorities said they arrested Stephan Ramirez, 32, of San Jose, after they identified him as the man in the video. Officers arrested Ramirez at his home and booked the football fan into jail on suspicion of felony assault. "The Santa Clara Police Department shares the community’s outrage over the violence at Sunday’s 49ers-Raiders game. Rivalry is never an excuse for criminal behavior," the police department wrote. Sunday's matchup marked the first time in six years that the Raiders played against the 49ers in a regular season game. The 49ers won, but the atmosphere in the stadium was not completely celebratory. There were several incidents of fan-on-fan violence that broke out during and after the game at Levi’s Stadium. Eleven people were arrested Sunday, and 45 more were ejected from the event, police said. "Some of these incidents were caught on camera and posted to individual social media accounts," SCPD wrote. "Incidents of violence at large-scale events in Santa Clara will not be tolerated. " Several gameday fights are still under investigation. Anyone who witnessed these incidents or has video evidence is asked to call the Santa Clara Police Department at 408-615-4700. ...read more read less