I don't think you can, not only what he does on the pitch with scoring and assists/creation but the team ethic he has is pretty much one of a kind. If he is to be replaced it will either with some one like diaz, i expect I can't think of anyone though.As for Salah, I want him to stay personally but if a 150mil offer comes in again then i can see why theyd accept. As to who replaces him? Szobo?