Arsenal fullback Nacho Monreal believes former Malaga teammate Isco has signed for Real Madrid.

Isco is also interesting Manchester City.

"Isco has succeeded wherever he has gone. I believe he has already signed for Real Madrid and I'm sure he'll do very well because he is a great player," the 27-year-old told Marca.

"He may cost them, but together they will have opportunities and they will seize them."