Greater Manchester Police have issued a statement on their Facebook page revealing that a "drunken" fan contacted the emergency services after United lost on penalties at Old Trafford.
According to The Guardian, the police said: "Last night, at approximately 10.30pm a man from the Crumpsall area of north Manchester rang 999 in a drunken state demanding to speak to Sir Alex Ferguson about last night's result.
"Obviously, it can be a sad and depressing moment when you're [sic] football team loses a game, however can we all please remember that 999 is to be used for emergencies only. For any other police related enquiries that are not an emergency, you can ring 101.
"If you would like to speak to Sir Alex about recent football results we here at GMP Manchester North can only suggest you try ringing Manchester United FC directly as you will probably (not definitely) have a much better chance of getting through to him there rather than ringing the police."
Ferguson retired from his 27-year tenure at Old Trafford at the end of last season and was replaced with David Moyes.