Chelsea boss Graham Potter admits he looked "like a fool" after defeat at Brighton.
Potter's use of Raheem Sterling and Christian Pulisic as wing-backs didn't work on the day.
He said, "The responsibility for those two wasn't to defend against their wing-backs, but I understand that whenever you do something, and it doesn't work, you look a bit of a fool. That is how it is. I have to accept that, deal with that, do better, and I'll learn. That's the process."
Kepa Arrizabalaga was forced off and Potter added: "He felt the bottom of his foot, so I don't know, it's too early yet. It was too bad for him to carry on. So that is disappointing for him because he is in a really good moment.
"If he [Kepa] is injured, it gives [Edouard] Mendy a chance."
