It's one of the biggest games in the Italian football season and hundreds of Inter Milan "ultras" are ready to fight. There are no rules except one: you can use fists, rocks, knives but not guns ...

Ultras' describes football fans who fanatically support their team, chanting and using drums and other instruments at games, setting off smoke bombs and flares, and showing flags, banners ...

According the reports, around 50 masked Udinese “ultras” went onto the track and launched smoke bombs to stop the train carrying Venice supporters back home after the Serie A match ...