If Chelsea faces a big club, maybe their performance will not be so bad and they will be able to provide resistance. Because this will be a prestigious match for both teams. Playing at home is Chelsea advantage so there is no reason not to take advantage of this moment. For Arsenal, they are ready to play at home and will not put pressure on Arteta squad. The mentality of Arsenal players who continue to improve and develop after beating Manchester City is certainly a motivation to continue to maintain their victory.
It is difficult to predict the outcome of this game. Chelsea are not stable, Arsenal are pretty good. Statistically it is possible that Arsenal are the underdog. But Chelsea can't be underestimated either. Chelsea in the last 3 games did not lose, it can be a good momentum to beat Arsenal. Performing at Stamford Bridge is also another advantage. Actually, Chelsea have high-priced players, but either they can't make good use of them. In addition, Chelsea seem to be losing because they sell some players at low prices.