DOWNEY, Calif. (KABC) -- A violent brawl between sports fans outside a Buffalo Wild Wings in Downey during the San Francisco 49ers vs. Pittsburgh Steelers football game Sunday morning was caught on video.The incident occurred at the sports-bar chain at the Stonewood Center.Dave Amaro, who provided the footage to Eyewitness News, says a 49ers fan attacked a Steelers fan as they watched the game, and the fight then spilled outside of the restaurant.Downey police said everyone involved in the altercation left the business before officers arrived, but the investigation is ongoing.No injuries were reported. So far, no arrests have been made.The Steelers overwhelmed the 49ers 43-18 on Sunday.