A man was slashed in the face during a fight which police believe involved fans of English football teams Millwall and Everton before their FA Cup match on Saturday at The Den in London.
London’s Metropolitan Police said the man, who is in his 20s, was taken to a hospital and that his injuries are not life-threatening.
Video has circulated on social media showing a large group of men, purportedly Everton and Millwall supporters, fighting in south London.
Detective Inspector Darren Young, of the Metropolitan Police, said the force is aware of the footage which has “quite rightly elicited shock and disgust” and is looking to identify those involved.
Everton lost the fourth-round game 3-2 and their fans were being held back in the stadium after the final whistle on safety grounds.