Slovan Bratislava fans clashed with stadium security and riot police in the stands during the club's away match against DAC Dunajská Streda on Saturday.
SFC Opava and Baník Ostrava fans clashed with each other and riot police before and after Saturday's derby match in Opava.
Gama and Brasiliense fans clashed on the pitch during Sunday's match at the Estádio Walmir Campelo Bezerra in the city of Gama.
CSKA and Zenit fans briefly scuffled in the stands during Saturday's match in Moscow.
Up to 30 fans were involved in a street brawl in Surry Hills before Sydney FC's A-League match against Melbourne Victory.
A mass brawl erupted on the streets of Berlin on Saturday ahead of the Hertha BSC vs Eintracht Frankfurt Bundesliga clash.
Veracruz and Tigres UANL fans clashed at the Luis 'Pirata' Fuente stadium following their Liga MX match on Friday.
‘Russia’s Hooligan Army’, a new documentary film by the BBC on Russian football hooligans.
Barcelona fans were attacked by a group of Alavés hooligans ahead of their La Liga clash on Saturday.
Barcelona SC fans clashed among themselves in the stands during their team's game with Macará on Sunday.
FSV Frankfurt fans clashed with cops at Steigerwaldstadion after their 3. Liga game versus RW Erfurt.
A large group of Eintracht Frankfurt hooligans attacked a bar with Darmstadt fans ahead of their derby match at the Waldstadion on Sunday.