Fans of Olimpija and Maribor clashed at Ljubljana’s Stozice Stadium before their derby match on Saturday.
Sion hooligans attacked Etoile Carouge supporters after their Swiss Cup match on Friday.
Colombia fans fought each other at the Mestalla Stadium in Valencia during the team’s friendly against Iraq on Friday.
Confianca and Nautico fans fought at the Lourival Baptista Stadium in the city of Aracaju before their Brazilian Serie C clash on Monday.
Fiorentina hooligans attacked West Ham fans at a bar in Prague on Wednesday afternoon ahead of their Europa Conference League final.
Brescia fans threw flares and invaded the pitch during their Serie B relegation play-off against Cosenza at the Mario Rigamonti Stadium on Thursday, forcing the game to be suspended.
Cambuur and Heerenveen fans were captured brawling near the main railway station in Leeuwarden on Friday.
West Ham supporters came under attack from AZ Alkmaar fans at the end of their Europa Conference League semi-final second-leg at the AZ Stadium on Thursday night.
Espanyol fans invaded the pitch and charged at Barcelona players celebrating their La Liga title win at the RCDE Stadium.
Udinese and Napoli hooligans clashed on the pitch at the Friuli stadium after Napoli clinched the Serie A title.
Esperance fans clashed with police at the Rades Stadium at half-time of their CAF Champions League quarter-final against Algeria’s JS Kabylie on Saturday.
Olympiacos hooligans clashed with riot police on the pitch at the Karaiskakis Stadium after their side’s 3-1 defeat to AEK on Sunday.