Two Liverpool fans have been stabbed in Naples ahead of the Europa League tie in the city.Liverpool are due to play Napoli at the team's San Paolo stadium on Thursday evening.Merseyside Police said a total of six Liverpool fans were assaulted in the Italian city on Wednesday night.Two men, aged 27 and 53, were taken to hospital with stab wounds. Their injuries are not thought to be life-threatening, a police spokesman said.The BBC's correspondent in Rome, Duncan Kennedy, said doctors had told him the 53-year-old, Alexander Phillips, was due to be released later.Three arrestsThe Foreign Office said he was from Liverpool.The 27-year-old man, who has asked not to be named, is expected to remain in hospital for observation.It is understood 10 Italian youths with sticks and at least one knife were involved in the attack.There are also reports of a family of four being injured. It is not clear whether they are included in the group of six fans Merseyside Police have been made aware of.Naples police said three people had been arrested over that incident.Source: BBC