A Santa Clara police investigation centers on a viral video purportedly showing a brawl between 49ers and Raiders fans in a stadium parking lot following a rivalry game. The footage circulating online appears to show multiple assailants and at least two participants becoming unresponsive, prompting concerns and eyewitness intervention. Authorities have not confirmed whether the video triggered the inquiry or if other reports are involved, and details remain scarce as the case develops. The incident follows the 49ers’ 38-17 victory in the matchup, and officials are seeking tipsters to aid the investigation.