After defeating Manchester City, Arsenal is more confident than before. I am very certain that Arsenal will defeat Chelsea next week.
Arsenal's win against City was so important for them, they finally got to defeat City after such a long time and it will give them confidence in the league as well, they are strongly amongst the favorites to win the league this season. Arsenal ought to defeat Chelsea this weekend, but i am sensing an upset, everyone has already written Chelsea off in that game, we all think it should be an easy win for Arsenal, but maybe Pochettino's boys would spring a surprise in that game and come away with something from it, i'd keep my finger's crossed on that one.
Arsenal is currently in its best performance after beating Manchester City, which is the strongest rival in the Premier League, and that is what makes Arsenal even more confident of being able to win the title in the Premier League this season.
The match against Chelsea will certainly be a fairly easy match for Arsenal because currently Chelsea is not in goods condition and when compared to Manchester City Chelsea is not that tough an opponent for Arsenal.
Even so, Pochettino will not let Arsenal take point they will try hard in this match to improve their current position even though it is not easy it could be that Chelsea will hold on to a draw.