Ismaili striker Mohamed Mohsen Abou-Greisha flew to Germany to undergo medical tests after suffering from severe back problems of a late. Football director Ihab Galal said that Abou-Greisha was accompanied by midfielder Ahmed Khairi, who will follow up on a back surgery he underwent last year. "Khairi wants to make sure that everything is fine with his spinal column after last year's operation," Galal told FilGoal.com. Abou-Greisha, who rejoined Ismaili last January after a spell in the Chinese league, scored six goals for the Dervishes last season. Meanwhile, playmaker Abdullah Shahat is set to return to Egypt from Germany on Sunday, after finishing a rehabilitation period following a cruciate ligament operation. Shahat has been out of the game because of the same injury since last January.