Salah's an outstanding player, but his game has dipped over the last 12 months - see his goal return.
Is he over-played? On a general point it was notiecable that City did not start a single player who played at the ACON / Copa America, apart from Ota who was in because Laporte was injured. That may come back to affect Liverpool later in the season. They opted out of the Cups last season. This season they will have commitments that they can't opt out of, and Salah will get no rest at all.
I think Liverpool will be top 4, but I am not expecting them to challenge as they did last season