Take a look at some of the most memorable moments that happened inside the world of football hooligans in 2016.
Dynamo Kyiv and Besiktas fans clashed before kick-off and during their Champions League match on Tuesday.
Iraklis hooligans clashed with riot police at the Kaftanzoglio Stadium during their Greek Super League match with PAS Giannina on Monday.
Penarol fans clashed with police in and around the Centenario stadium prior to their derby match against Nacional on Sunday, causing the game to be called off.
Greuther Furth and Nurnberg hooligans clashed in a mass brawl in Furth this afternoon.
Sevilla hooligans attacked Juventus fans at a pub on Monday night ahead of their Champions League match.
Helsingborgs hooligans invaded the pitch to vent their anger following the team’s relegation from the Swedish top flight on Sunday.
Romanian and Polish fans clashed briefly at the National Arena in Bucharest during their World Cup qualifying match on Friday.
OFK Beograd and Zemun fans brawled in the stands at the Omladinski Stadium during their Serbian First League match on Saturday.
Corinthians fans clashed with police inside the Maracana stadium before their side’s match with Flamengo on Sunday.
Members of Goteborg’s hooligan firms Wisemen and GYB staged a fight with hooligans from AIK’s Firman Boys outside a pub in Gothenburg city centre on Sunday afternoon.
Legia Warsaw fans were involved in a series of scuffles with Spanish riot cops ahead of their Champions League meeting with Real Madrid on Tuesday.