Im actually not that worried about Haaland but Im worried wether Manchester United would be able to score or not because Donnarumma is pretty tough to crack. In fact I just realized that this Manchester Derby gonna be a sweet debut for either Lammens or Donnarumma, two newly signed goalkeeper gonna make their debut on the derby
Manchester United couldn't score any goal at the end of the day.

Donnarumma was quite decent with 2 saves one of which was amazing.
Lammens couldn't make his debut yet because Amorim didn't select him right away. I think he should have done it just like Manchester City did it with Donnarumma.
I already said this but for me as far as i can see the team who lose the derby can also lose his coach, if Amorim plays bad and the teams lose badly and i mean really bad like 4-1/4-0 for sure he is not gonna be the coach of Manchester United.
Like we say here "the oven is not for buns".
Guardiola case is a little bit diferent but.... he can start to face some heavy troubles if he lose this game.
It ended by a big defeat like 3-0. It could have been even more as Manchester City wasted more opportunities. I can't say Manchester United couldn't create any chance but they wasted them all generously. Mbeumo still can't score easily despite trying.