كتب : Sherif Tarek
The coastal club's official website mentioned that the 25-year-old suffered a cruciate ligament rupture during a recent friendly game.
He's expected to make his return after eight months.
Gamal is the fifth Ismaili player to sustain a cruciate ligament problem this year, as Ahmed Khairy, Abdullah Al-Shahat, Omar Gamal and Mohamed Fathi picked up similar injuries earlier this season.
The Dervishes are currently preparing for the next Egyptian Premier League match against Gaish on Wednesday.