I dont know if Graham Potter is taking into consideration the intensity of Arsenals attack. Their front 3 have contributed about 26 goals and created a lot of chances in their team this season. In recent games, Potter has been trying to switch to a 3-4-3 formation playing both Sterling and Pulisic as wingbacks. If he decides to go with this against this Arsenal side, hes going to suffer the defense and theyll end up conceding alot of goals. He needs to fix up a balance team that can absorb the pressure and momentum Arsenal will bring to the Bridge.
Graham Potter must see the opponent this time as something different from the previous one, because Arsenal are the leader of the standings who already look strong and Chelsea of course already know that so the defense must be really strong even though the attack line must also be better because if Chelsea have difficulty in scoring goals against Arsenal, then it will make Arsenal more free to take advantage of opportunities to get victory at home to Chelsea.
If we compare the defense of Arsenal and Chelsea, it is easy to understand that Arsenal's defense is slightly stronger than Chelsea's. Also, Arsenal's attack is very strong this season. They scored 30 goals in 12 matches. And so it is very difficult for any team to stop Arsenal's attack. I would say if Chelsea want to win today, they have to play attacking. It is impossible to win this match if you don't play attacking strategy. But I think Chelsea will play defensive strategy in this match and try to draw the match.