Source: http://uk.reuters.com/article/oddlyEnoughNews/idUKTRE51J5DM20090220?feedType=RSS&feedName=oddlyEnoughNews; http://sportsrubbish.blogspot.com/2009/02/video-soccer-brawl-between-brazilian.html; http://www.telegraph.co.uk/sport/football/4734178/Brazilian-goal-celebration-leads-to-a-pitch-brawl-and-seven-red-cards.html
Seven players went sent off after a fight (try mass riot!) was sparked by Rogeiro Pereira’s goal celebration in the Rio Grande do Sul championship between Brasil and Ulbra. The game ultimately finished 5-2 to Ulbra (that’s goals rather than suspensions!), Four Brasil players (Danrlei, Luciano (reserve) Gleidson and Alex Martins) and three Ulbra players (Henry, Juninho (reserve goalkeeper) and Rogerio Pereira) were sent off following the brawl.
The fight broke out after Pereira (an Ulbra player) celebrated in front of the Brasil supporters.
According to Brazilian newspaper, O Globo, Brasil’s goalkeeper Danrlei said that Pereira had made a gesture in his goal celebration imitating Claudio Millar (one of the top players for Brasil who died along with 2 other players and coaches in a bus crash in January) which deliberately provoked the home fans. Pereira was then attacked by the Brasil players near the corner flag, before footballers, team officials and even the Brasil President (Elder Lopes) joined in the fight.
Pereira denied any intent to offend.
You can see footage of the brawl on Youtube: