Film emerges showing violent attack by a football supporter on Sunday . Attack takes place after derby 's League Cup Final victory over Tottenham . footage , shot by a bystander , shows man being repeatedly shot in head . police have arrested and a bailed two men from jail over the incident . Footage is the latest incident of football hooliganism in recent years .
Film emerges showing violent attack by a football supporter on Sunday . Attack took place after Chelsea 's League Cup Final victory over Tottenham . Video , shot by a bystander , shows man being repeatedly punched in head . Police have arrested and a bailed two men from Brighton over the incident . Footage is the latest incident of football hooliganism in recent weeks .