(Reuters) - FC Twente have told their fans not to wear red clothing or anything featuring the club logo during their trip to Stockholm for the second leg of their Europa Conference League game against Hammarby on Thursday, Dutch broadcaster NOS said on Saturday.
Riot police were called in to break up clashes after a group of Twente ultras sought out Hammarby supporters in the main stand after the final whistle in the first leg of the second qualifying round last Thursday, local media reported.
