Yeah, fight scene first. If the authorities take action on the players who fight, it seems like all players from both teams were involved as the fights were all over the pitch. I lost count the number of flying kicks had committed.
Back to football action:
Fluminense reached the Copa Sudamericana final by scoring twice in injury time to overcome Paraguay's Cerro Porteno 2-1 and 3-1 on aggregate. That might be the reason to trigger the butal fights.