Arsenal may not appear with the perfect squad when facing Chelsea because one important player in Arsenal has to be sidelined due to injury. the absence of saka may be a gap for chelsea to be able to beat arsenal next week.
If Saka actually does miss the game through injury then it is going to be a very big miss, Saka has been very instrumental for Arsenal this season, and he is very important to Arteta in the way he wants to set up and play his own kind of football, but notwithstanding i don't think Arsenal are a one man team and they are going to do pretty well without Saka, if they are to have any chance of being EPL champions at the end of the season then they must also be able to cope without key players. Chelsea themselves aren't better in terms of important players missing through injury, the likes of James, Kante and it seems Kepa too are all out, so there is really no excuse, and i think Arsenal are the favorites.
Buyako Saka is an important player but for me Arsenal can still play a role for his replacement this will not be a bad gap but how can Arteta manage all this so that their attack line remains good and there are still some players who are enough to change the strategy a bit or in their formation.
We know Chelsea are in bad shape even though it's not completely like that, while Arsenal are in glory but it will be solid again even though it will face a tough opponent for Arsenal and can't believe that with Saka's absence Arsenal will be a little weak but Arteta will fight for victory at the opponent away.