كتب : وكالات
The 31-year-old full back collected the injury in training on Saturday and Ahli's medical service announced he will be out for four weeks.
Al-Shater will miss seven league games during the lay-off.
Meanwhile, Mohamed Barakat suffered bruised his chest on Monday after colliding with Ahmed Al-Sayed.
But scans proved the injury won't rule him out of training and that the international midfielder will link-up with his team mates on Monday.