That's according to the Egyptian Football Association President Hany Abo Rida (via Bleacher Report's Dean Jones):
Salah injured his shoulder in the UEFA Champions League final against Real Madrid, as the Liverpool winger landed awkwardly after a tussle with Sergio Ramos.
The 25-year-old was substituted immediately, amid fears he would miss out on the World Cup entirely.
Khaled Abd Elaziz, the Egyptian minister for sports, had initially said in a Facebook post that the forward would be fit for the start of the tournament, per AS' Ivan Cordovilla.
The man himself also remained optimistic, although he admitted the odds did not look good:
Egypt will face Uruguay on June 15 before taking on hosts Russia on June 18.