Lazio and Roma fans launched flares at each other inside the Olympic Stadium before their Italian Cup quarter-final tie on Wednesday.
Lazio
Spezia and Lazio fans clashed in the street before their Serie A match on Friday.
Six Lazio fans were attacked by Cagliari hooligans ahead of their Serie A clash at the Sardegna Arena on Monday.
Celtic fans were attacked outside a pub in Rome ahead of their side’s Europa League meeting against Lazio on Thursday night.
Lazio hooligans clashed with riot police near the Stadio Olimpico ahead of the side’s Italian cup final against Atalanta on Wednesday.
Football hooliganism has returned to the Europa League with a bang after a two-month break.
