Think we will lose this one comfortably as I don't trust McTominay at the moment, even though he was alright at the start of the season. I think Scott will go into his shell, and Fred will be isolated, which will lead to us being constantly attacked. I think our defense will do well, but Arsenal will get a jammy goal or rebound or something. Anthony Taylor being the ref makes this even worse.
I am so happy with the progress under ETH though and hopefully, our players can go into the game feeling like they have nothing to lose and play with freedom (especially the wingers).