3) Defend as a unit
There's one thing City love, and that is a disjointed defence because with the quality of David Silva, Kevin de Bruyne, Bernardo Silva etc, they will find the pass to expose gaps in the backline.
If United's back four and midfield can remain compact, limiting the space for City to play, then that is certain to frustrate the hosts.
Again, Wolves are the perfect example. They defended very close to each other, which meant City could not get through with their usual regularity.
Crucial to this plan is Harry Maguire, who is the captain and leader of the defence. He loves to bring the ball out from the back but on this occasion, he's going to need to keep it simple and effective because City will ensure they pressurise him heavily.
It's important that the United defenders pick their passes, rather than just clearing the ball up the field because that will result in wave after wave of City attacks, which will tire the defenders out.
If United can master these plans, then a place in the final could well be on the cards.