The incident took place at the Emirates Stadium on the day the Gunners beat Manchester United 3-1.
German police have told any England fan thinking of singing ‘10 German Bombers’ at this summer’s European Championship: “Don’t be a d---.”
A 43-year-old Arsenal fan has been found guilty of headbutting football pundit Roy Keane following Arsenal’s 3-1 victory over Manchester United in September last year.