Italian media outlets are reporting that a group of Spaniards, an American and a British person were stabbed in violence linked to SS Lazio's upcoming European match against Sevilla.
The Biancocelesti host Sevilla on Thursday in the first round of knockout matches in the Europa League, having edged through the group stages just ahead of Apollon Limassol, but some nine points behind Group H winners Eintracht Frankfurt.
There have been concerns ahead of the game surround safety precautions due to the reputation of football-related violence in Italy, and Gazetta dello Sport reports that an attack has taken place some 24 hours before a ball has even been kicked in Rome.