Before 1991 Croat fans used to clash with Serb fans. The unified Yugoslav league gone, the Croats happily fight Croats, the Serbs fight Serbs, and any occasion will do.








Soccer fans of River Plate are arrested by the Argentine police near the Monumental stadium before their Argentine First division soccer match against Velez Sarsfield in Buenos Aires September 9, 2007. They were arrested following a fight between two different factions of River Plate fans.(daylife.com)








Fans of soccer teams Danubio and Nacional fight on the field after their Uruguayan league soccer match in Montevideo, Sunday, Nov. 16, 2008. Uruguay's football authorities have suspended play in all divisions until further notice due to an on-field fight involving more than 100 fans of the two first-division teams.(daylife.com)








Police officers guard soccer fans after a Feb. 18 clash in Buenos Aires involving gangs known as barrabravas. "The barrabravas are a cancer," another fan said. (Washingtonpost.com)