Protesters charged onto a busy main road and hounded drivers during 'mob' violence which led to a Premier League match being abandoned.
Up to 2,000 fans descended on the stadium ahead of Manchester United's match against Liverpool in May last year in a demonstration against the Glazer family and the proposed European Super League.
The fixture was later abandoned on safety grounds after the peaceful protest turned ugly, with some fans breaking into the stadium, throwing bottles and violently confronting the police. During the melee, one police officer suffered a serious injury to his face after being hit by a bottle.
