Nice and Cologne fans clashed in the stands at the Allianz Riviera stadium before their Europa Conference League match on Thursday.
Cologne
Cologne hooligans attacked Genk fans during their Youth League match at Genk’s training ground on Tuesday.
Cologne fans clashed with police near the Rhein-Energie stadium at the end of their side’s Bundesliga match against Schalke on Saturday afternoon.
Cologne hooligans pinched a flag from Borussia M’gladbach ultras during the half-time break of Sunday’s Bundesliga match.
