This brawl has everything: riot police, tear gas, fans playing tug-of-war over a banner, everything.
Congratulations to the Gama fans, who appear to have won the tug-of-war and escaped with the banner. Better luck next time, Brasiliense.
Fans, you shouldn't run on the field and fight people, but if you do stealing another team's banner via tug-of-war is very fun to watch.