Arsenal have warned supporters attending Wednesday night's Champions League clash with Roma that they are "at risk" if they travel alone to the Stadio Olimpico.
The north London club have printed a booklet warning the 3,400 travelling Gunners fans to avoid transport routes usually taken by the Italian club's 'Ultra' supporters.
Arsenal fans have also been warned to steer clear of the Campo De Fiori, the traditional meeting place for Roma supporters prior to home matches.
Rome has been selected by UEFA as the host for this season's Champions League final but city officials have been warned by European football's governing body that any serious acts of hooliganism between now and May 27 could see the showpiece moved elsewhere.
The Italian capital has come under the microscope in the wake of several high-profile incidents in recent years, most notably when a number of Manchester United fans were wounded in clashes with Roma fans in two separate incidents in the city in 2007.
"If you travel to the stadium independently, please be aware you are at risk," stated the booklet circulated by Arsenal.
"Do not take trains to the Piazza Flaminio or attempt to use the Ponte Duca D'Aosta bridge as these are habitual routes taken by the Ultras.
"Please stay away from the Campo De Fiori."
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