If you flash back to last season when De Bruyne and Haaland had injury, the performance of the team dropped and they had difficulties winning their matches, until De Bruyne came back from injury.
It’s obvious that the main problem Manchester city are having this season is injury problem. Manchester city performance has dropped, due to some of they their key players that are on injury. De bruyne is a player which whenever he is on injury, Haaland’s performance is always dropping during that period, we all know Haaland to be a goal scoring machine, mostly De Bruyne is the player which is always feeding Haaland with passes, so whenever De Bruyne is on injury, Haaland is always finding it difficult to perform well in most matches.