Arsenal goalkeeper David Ospina has agreed terms with Besiktas.

However, Arsenal are demanding Besiktas cough up to sign the Colombia international in a permanent transfer.

Turkish media sources say Arsenal want to sell the the 29-year-old permanently, whereas Besiktas would prefer to sign him on loan.

For his part, Ospina accepts he needs to leave Arsenal after finding himself third choice behind Bernd Leno and Petr Cech.

Besiktas still have several weeks to close a deal for the keeper.