In 2007 , Manchester United fans were injured after violence in two separate incidents with Roma fans when the teams met in Rome . Fan injured during ambush on bus before Champions League game in Rome . Arsenal bus attacked when it arrives at wrong part of Stadio Olimpico . Windows on bus smashed by Roma fans and one fan enters bus . Police say they are investigating the incident as a possible terrorist attack.
Fan injured during ambush on bus before Champions League game in Rome . Arsenal bus attacked when it arrives at wrong part of Stadio Olimpico . Windows on bus smashed by Roma fans and one fan enters bus . Police say they are investigating the incident as a possible terrorist attack.