Chelsea have struggled very hard in the match against Arsenal they tried their best to give goals but in reality it is still difficult to break down Arsenal's defense, If Arsenal have understood the strategy of Manchester City which only relies on Erling Haaland and always provides tight guard so it is not easy to get the ball then Manchester City may also be beaten by Arsenal.
Well even though Haaland is the top scorer on Manchester City, it doesn't mean the other players was play bad. Don't forget they have Kevin De Bruyne which currently the best central midfielder player in this season, Phil Foden and Riyad Mahrez who have a good speed and accurate pass to support the center forward. As you can see in the last 2 matches of Manchester City, they let Alvarez to play, not Haaland and they won the 2 matches.