Sion hooligans attacked Etoile Carouge supporters after their Swiss Cup match on Friday.
Luzern and Basel hooligans clashed in the street ahead of their teams’ Swiss Super League match on Sunday.
Trouble flared at the Letzigrund Stadium after Saturday’s Zurich derby as Zurich hooligans tried to get at Grasshoppers fans.
Biel-Bienne and Sion fans clashed in a street fight in the city of Biel on Saturday night.
On this day in 2008, St. Gallen fans rioted at the Espenmoos stadium after their side was relegated from the Swiss top flight.
On this day in 2006, Basel fans went on the rampage at St Jakob-Park after the side’s dramatic defeat by Zurich.
Aarau and Servette fans fought at Neuchatel railway station on Saturday night.
Grasshopper Club Zurich fans forced the side’s players to hand over their shirts during Sunday’s Swiss Super League match at FC Luzern.
Luzern fans staged a protest against the early kick-off time of their side’s Swiss Cup quarter-final tie with Young Boys on Wednesday.
Biel-Bienne fans were attacked by Young Boys hooligans at a bar before their Swiss Cup match on Saturday.
Lausanne-Sport hooligans attacked rival Thun fans during their Swiss Super League match on Sunday, causing the game to be abandoned.
Zurich fans tried to get into their team’s dressing room on Wednesday evening, after relegation was confirmed on the final day of the Swiss Super League season.