It's dishonorable to say no when the national flag calls.
Repeatedly I say, the game isn't going to be an easy one for both team and even as everyone's picking arsenal as the favourite in this match I still hope Chelsea team return with their impressive performance they showed up before the international break, and in same way you made mention of some arsenal players in the likes of Saka returning from injury Chelsea will also be welcoming back a number of key players from injury to this game. Chelsea seem to be underrated in this match against Arsenal comparing the two teams performance but I'll also remind you that there has been a lot of improvements in Chelsea's team that many teams and fans are yet to confirm but a win against Arsenal today will prove it right and am still holding my fort that Chelsea will win the game.
Though Chelsea seems to have picked form judging from there past 3 matches but that isn't enough reason to conclude that they are in form and judging from the impressive performance of Arsenal against Tottenham and against Man city which are big teams and more in form than Chelsea, whoever that watched Arsenal match against Man city will see that irrespective of the fact that Arsenal won, they Actually displayed a high level of team spirit both from the defenders and the mildfieders so if they continue in that spirit then their match against Chelsea might not be a problem to them.
Moreover, though Arsenal have not also been too consistent but relating or comparing the head to head with Chelsea, Arsenal have won 7 of their last matches with Chelsea, drawing just one and losing just 2 matches so from my view and analysis, Arsenal seems to be the likely favorite in this match