Real Madrid must up their offer for Feyenoord wing-back Royston Drenthe.

Feyenoord have rejected Real's latest £5 million bid for Drenthe and are now insisting on at least £8 million for the U21 Holland international.

Real sports chief Pedja Mijatovic intends to make an improved offer this week, well aware that Drenthe's agents have been speaking to rivals Chelsea in recent days.