Karl Hein: The worst possible thing that could have happened to him on his debut as he slipped before compounding the error by getting up to foul Danny Welbeck. Could do little about the second goal but by that point the damage was done. Was too slow to come out for the third as well. 4.
Cedric: A decent display on his first start of the season. Defensively solid enough enough and some typically solid delivery from crossing positions. 6
William Saliba: A display that absolutely oozed class almost throughout. Showed leadership in moments as well and allowed Arsenal to get up the pitch on occasion. A bit exposed for the second goal by Brighton's movement, but a performance befitting of his place in the France World Cup squad. 8.
