The British Foreign and Commonwealth Office has warned Manchester United fans which metro stops and other areas of Rome to avoid because of the fears of widespread trouble at next week's Champions league final.
European football's dream final is expected to draw up to 30,000 United fans, with up to a third going without tickets for the match against Barcelona..
UEFA threatened to take the final off Rome if AS Roma's Champions League quarter-final against Manchester United last season was marred by a repeat of the violence that hit United's previous two visits.
That did not happen but Arsenal fans were attacked in March before their team knocked out Roma in a last-16 second leg match.
