In the wake of Egypt's 0-0 draw with Colombia on Friday, team coach Hector Cuper conceded that the team missed the striker's firepower, admitting they are preparing for all situations with regard to his health.
This leaves Salah racing against time to be fit for Egypt's meeting with Uruguay on June 15 which comes a little before three weeks.
Cuper explained: 'We are optimistic, and every medical report says he'll make it.
He added: "We hope we won't be affected, we try to be the same team, we can't be dependent on one player".
"Injuries are an ordinary thing in football, but we are bidding on the players' ability of passing such hard moments".
"This is football, these things can happen to any player".
It is however reported that Salah will not meet up with his team-mates until 9 June as he continues his recovery.
He said Salah instigated the tussle between the players which led to the Egyptian forward leaving the game in tears.
Egypt are in the World Cup finals for the first time since 1990, with Salah firing the Pharaohs to the tournament, where they will take on Saudi Arabia, Uruguay and the hosts in Group A.
The Egyptian Football Federation allayed fears of Salah's World Cup absence last week, saying in a statement that the playmaker was expected to be sidelined for a maximum of three weeks.
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