A number of supporters forced their way into Old Trafford prior to Sunday’s scheduled 4.30pm kick-off as a demonstration against club owners the Glazer family escalated into incidents of damage and violence.
Two police officers were injured, with one “attacked with a bottle and sustaining a significant slash wound to his face, requiring emergency hospital treatment”, while bottles and barriers were thrown outside the ground according to Greater Manchester Police.
The Football Association, which is investigating incidents at Old Trafford, took a dim view of fans’ behaviour.
“We understand their frustrations. However, we cannot condone the violent and criminal behaviour that took place before the scheduled Manchester United v Liverpool match, which the FA is now investigating,” said a statement.