After watching the entertaining match, I made some observations.
Chelsea:
Willian loses ball possession easily. He needs to be more firm while running with the ball.
Pedro's long range shot could be helpful sometimes but he should make them to be more on target.
Morata is very good at aerial balls but his legs are important too and he needs to work on them.
Jorginho is a wizard in the midfield.
Alonso needs to cover up when he overlaps.
Rudiger needs to overcome some defensive mistakes.
Arsenal:
I only saw ozil in this match when he was about to be substituted. Seriously, he was totally lost in the match.
Aubameyang hmmm if I want to make comments on his mistakes, I will publish a textbook 😂 😂.
Lacazette is loosing ball possession easily and it is not too befitting for a professional footballer.
Xhaka's effort in the midfield weren't enough.
Bellerin needs to be more careful while overlapping.
Well, the players all did their best but the better side will always win. Congrats to Chelsea.
Please no part of this post is meant to disrespect anyone.
Thanks.