However, Egypt'sRamzy has looked to play down the seriousness of the 26-year-old's injury as he told Yallakora: "The initial diagnosis confirmed that the injury is a muscle strain and there is no possibility of muscle rupture".
Salah was substituted in the dying embers of the Pharaohs' African Nations Cup qualifying victory against Swaziland. And although it ended a mini-drought of four Liverpool games without a goal, it was Salah's fifth goal in his last four games for Egypt.
After scoring 44 times last season Salah has yet to hit those same heights in 2018-19, scoring just three goals so far this campaign.
He received treatment and tried to shake off the problem but left the field soon after, in injury time. "It is not a tear, I think it is not serious".
The Egyptian Football Association (EFA) released a statement on Saturday and said the forward would play no part in Tuesday's return fixture in Swaziland.
The win put Egypt level with Tunisia at the top of Group J, although Tunisia has a game in hand.
Jonathan Kodjia, Manchester United defender Eric Bailly, Cheick Doukoure and Maxwel Cornet scored for the IvoryCoast as they crushed the Central African Republic 4-0 in Bouake.