Manchester City are anxiously awaiting the extent of a knee injury sustained by Omar Marmoush while on international duty.
Marmoush was forced off in the opening moments of Egypt's goalless World Cup qualifier with Burkina Faso on Tuesday night and will miss Sunday's Manchester derby.
The forward – who has suffered a bruise on the knee ligament, according to the national team doctor - went for further scans in his homeland on Wednesday.
Marmoush arrived in Cairo on crutches and was greeted by Egypt's minister for youth and sport, Ashraf Sobhy among other dignitaries.