Chaos erupted in the stands at the Velodrome stadium ahead of Marseille’s Europa Conference League game against PAOK on Thursday.
West Ham and Eintracht Frankfurt fans clashed on the streets of Seville on Wednesday night, in between the two clubs’ Europa League ties.
Violent clashes broke out between rival fans during Saturday’s Mexican top-flight match between Queretaro and Atlas.
Zeljeznicar and Sarajevo fans fought on the pitch of the Grbavica Stadium prior to their match on Saturday.
Fans of Decic and Buducnost Podgorica clashed in the stands during Saturday’s match between the two teams in the Montenegrin town of Tuzi.
Parana fans ran on to the pitch and attacked their own players during Saturday’s Brazilian Campeonato Paranaense match with Uniao Beltrao.
Dinamo Zagreb fans clashed with Spanish police at the Ramon Sanchez-Pizjuan Stadium during their Europa League tie against Sevilla on Thursday.
A Leicester City fan ran onto the pitch and attacked Nottingham Forest players during Sunday’s FA Cup tie between the teams at the City Ground.
A mass fight broke out between fans ahead of a Croatian top-flight match between Gorica and Hajduk Split on Saturday afternoon.
Brazil fans fought each other at the Mineirao stadium during Tuesday’s World Cup qualifying match against Paraguay.
Fighting broke out between supporters at a Brazilian regional league game between Maringa and Athletico Paranaense on Wednesday.
Gama and Brasiliense fans clashed at Brasilia’s Mane Garrincha Stadium during their regional league match on Wednesday.