Shehab said he faces up to three weeks on the sidelines to mount the problems of Ahli's under-pressure coach Hossam Al-Badri.
"I suffered from a sprained ankle against Gouna. I will take the Al-Adha feast days off before beginning the rehabilitation program," he told FilGoal.com on Thursday.
Ahli will now have to do without Shehab when they face bitter foes Ismaili in a highly-anticipated league clash on November 21.
The 20-year-old burst onto the scene during Egypt's U-20 World Cup campaign on home soil last year.
He produced some fine displays with Ahli's senior team this season, scoring the memorable last-gasp goal which helped the Red Devils overcome Libya's Ittihad to avoid an embarrassing Champions League elimination from the preliminary rounds.
Ahli fell to a surprise Gouna goal last Tuesday but Shehab, who came on as a second-half substitute instead of off-color midfielder Hossam Ghaly, secured a share of spoils after a fine individual effort.
He eluded two challengers on the edge of the area before sending a low shot past Gouna keeper to maintain Ahli's unbeaten league run.
Al-Badri has already had to do without several key players, including Mohamed Barakat, Sayed Moawad and Mohamed Abou-Treika, due to injuries.
Defending champions Ahli, who eye a seventh consecutive league title, are second in the table with 18 points, three behind leaders and arch-rivals Zamalek.
نرشح لكم
القسم الثاني ب – برئاسة شيكابالا.. طارق يحيى مدربا لنادي جي
خبر في الجول – عموتة يجهز بدلاء الأهلي أمام بترول أسيوط في كأس العاصمة
في لقاء الـ 7 أهداف.. الزمالك ينتصر على مودرن سبورت وديا
وصول بعثة منتخب مصر لجنوب السودان
خبر في الجول - إصابة بنشرقي لا تدعو للقلق.. وموقفه من لقاء القمة
الأهلي يكشف تفاصيل إصابتي بنشرقي والدبيس
طاهر محمد ينتظم في تدريبات الجماعية تدريجيا
الأهلي يعلن استدعاء رباعي الفريق للمنتخب الأولمبي












"الكرة كلها لك أيها اللص".. دي ماريا يقود روزاريو للتتويج بلقب جديد وفيرون يصب غضبه على الحكم