The Dutch left-back was attracting interest from Portuguese giants Benfica but it appears as though he will now head to Istanbul according to his agent.
"During the [friendly] match against Sevilla in the past weekend, interest was expressed," Aleksander Bursac told Renascenca Radio.
"He put in a good performance. There was interest from Benfica to sign a defender, but that news is already history.
"Two days later, Benfica confirmed to me that they would keep the two left-backs [Melgarejo & Cortez] that they have left the squad.