I was about to say, it's the complete opposite!
Regardless of form United have always managed to beat us, every game vs united used to be us hammering their goal only for them to counter attack and score every time. Last couple of seasons we've had their number for some reason.
Our next run of fixtures are brutal though:
Southampton (A)
Man U (H)
Wolves (A)
Villa (A)
Leeds (H)
Man City (H)
Leicester (A)
Burnley (A)
Spurs (H)
West Ham (A)
Liverpool (H)