An English football fan remains in hospital after being stabbed by Italian thugs who are believed to have launched an anti-semitic attack.
Ashley Mills, 25, was in Rome to watch Tottenham Hotspur play Lazio - who have a renowned fascist following - when he and 10 other Spurs fans were ambushed by up to 50 hooligans.
Reports claim the yobs chanted racist abuse at the Spurs fans - who refer to themselves as the Yid Army - as they brought terror to the Drunken Ship pub where the fans were drinking in Campo de Fiori at 1am on Thursday.
Uefa, which represents Europe's national football associations, is now expected to decide if Lazio should answer for its alleged anti-semitism following chanting during the game on Thursday night.
The match was played under a cloud as Mr Mills, from Hutton, Essex, was treated in San Camillo Hospital for stab wounds to his head and leg and with other injured fans treated at medical centres across the Eternal City.
As the Europa League tie unfolded, Lazio fans started chanting "Juden Tottenham" - using the German word for Jew, and also unfurled a "Free Palestine" banner.
The chanting came from the Curva Nord, where the Lazio Ultras sit. Ultras - who are not exclusive to Lazio - are notorious hooligan fans.
Lazio denied its fans were involved in the attack. Before the game, club president Claudio Lotito said: "Lazio fans had nothing to do with what happened in Campo de Fiori."
It is also not unknown for sets of fans from different clubs, who share a similar philosophy, to unite and launch joint attacks.
Roma, the city's other big football club, also has fascist elements and has been responsible for brutal attacks on international fans. In 2001 Liverpool FC fans were stabbed by Roma thugs as they arrived at the city's Olympic Stadium for a Uefa Cup game, and in 2007 a group of Manchester United fans were treated in hospital after Roma Ultras also launched an attack.