I think Arsenal should not have much expected with the existing squad because their opponent is stronger than them.
Arsenal's current injured players are very important. Unfortunately, Arsenal's coach has been very unlucky, even though they have a good chance of fighting for the title, they have very important players injured. I think it's time for the coach to sell the players who have been suffering constant injuries. For example:
Gabriel Jesus, the guy will only return to play in November this year. But this season he has only played 4 games. He spent most of his time injured.
https://www.premierinjuries.com/teams/arsenalFortunately,
Bukayo Saka will play in two weeks and
Gabriel Martinelli will play next month. But
Kai Havertz will only return to play in June, that is, next season.