Drinkwater has moved to the Turkish outfit on-loan to the end of the season.
He said, "It is a moment that I have been waiting for a long time. The club has really worked hard and it has finally come true. I am very excited. A new experience. A lot of things are waiting for me. A new language, a new culture. I feel excited.
"My goal is to start playing again. I need to be in shape. Because I'm here to help Kasımpaşa. I can do my best and hopefully help us finish the league in a position to go to the Europa League."