A muscle injury has ruled out the wideman – who loves playing against Albion - until after the international break.
Salah has scored in three of his last four starts but gestured to the bench to be taken off after scoring against Galatasaray in midweek.
Liverpool boss Arne Slot on Friday morning: “Indeed, unusual and as a result of that you can expect the outcome: he’s not available for tomorrow.
“The good thing for Liverpool is we go to an international break, and the bad thing for Egypt is that he can’t go there.
“We’re hoping with what Mo has shown in the past that he can recover faster than other players in similar situation because he takes such good care of his body.
“History has shown he can be back earlier than some others, but it’s only two weeks until we go again, so let’s hope in that period of time he can be back.”
Jeremie Frimpong could be stand-in for Salah but that would then mean Dominik Szoboszlai, Liverpool’s best player this season, would again have to drop into defence despite a starring midfield role against Galatasaray, as Joe Gomez is not fit to cover.
Slot said: “I don’t know how many times I have to say this: Dominik is a midfielder. Should I say this five or six times?.
“So the moment I play him in a different position doesn’t mean I am trying to be a tactical genius, it means I don’t have options.
“So if I have a full-back on the bench, ask yourself if he is fit to play? Every time I make a line-up, there must be a reason why he is playing right full-back because Dominik is a very good midfielder for us.
“If everybody is available the team is stronger when he is playing in midfield, but if we miss five, six, seven players then maybe we disagree the team is strongest playing him at full-back.”