Buccaneers and Eagles fans got into an insane brawl in the upper level of Raymond James Stadium on Sunday ... with one fan violently throwing another down a row of stairs.
The wild scene all went down during the Eagles vs. Buccaneers playoff game in Tampa Bay ... when two Philly fans appeared to start a fight while their team was down 31-0.
You can see in video filmed by bystanders, a man in a Fletcher Cox Eagles jersey got into a scuffle with a Bucs fan -- and then all hell broke loose.