David Okereke will be out of action for four weeks for at least four weeks after he suffered a muscle injury.
Okereke, 27, was injured in the Turkish league game against Kayserispor.
Ironically, he was injured on the day he opened his goals’ account in Turkey.
He scored a 22nd minute goal and played the entire game on a 2-2 draw at fellow strugglers Kayserispor.
He has now scored a goal and delivered an assist in five appearances for Gaziantep FK this season.