Joseph Attamah's Rizespor lost their second game of the 2019-20 Turkish Super Lig season after going down 5-0 to his parent club, Istanbul Basaksehir.
The Ghanaian defensive midfielder is on loan with the Sparrowhawks for the whole season, but it was his real owners that dictated things, with Daniel Aleksic and Fredrik Gulbrandsen giving them a 2-0 first-half lead, before extending it further via Aleksic again and also from Enzo Crivelli and Irfan Kahveci.
The result moves the Turkish capital club level on eight points with Ismail Kartal's team after six matches.
For Rizespor, it is now back-to-back defeats after losing to Gazisehir at home last time out.