The Manchester derby is going to be a game that will come with a big shocker, I believe Manchester United will come out stronger in that encounter, a win in the champions league will make them play with all they've got just to be the top dog of this derby.
Manchester City have been dominating more in this derby but this season they don't look that active Manchester City they used to be as of last season and even 3-4 seasons ago, goals hardly comes with the style of play which is not that strong as we know them to be.
I think their (Man City) style of play is being countered by some of the opponents they played against and if United add more pressure and play as a unit without being greedy when it comes to goal scoring, I believe they can get a win against Manchester City.