Lazio and Roma fans launched flares at each other inside the Olympic Stadium before their Italian Cup quarter-final tie on Wednesday.
Roma
Real Sociedad and Roma fans clashed near the Anoeta Stadium in San Sebastian before their Europa League match on Thursday.
Napoli and Roma fans on their way to different matches clashed on the M1 motorway near the Tuscan city of Arezzo on Sunday.
A group of Roma hooligans attacked Liverpool supporters outside Anfield before Tuesday’s Champions League semi-final between the two sides.
