Mastour, 16, is yet to make his senior debut for Milan but he is regarded as the San Siro club’s brightest young prospect.
The playmaker, who has been reportedly linked with Manchester United in the past, is under contract until 2017 and has represented Italy at Under-16 level.
His potential has alerted La Liga giants Real Madrid, who have shown their commitment to youth by snapping up the likes of Norwegian teenager Martin Odegaard and highly-rated midfielder??Marco Asensio.
Mastour’s agent Dario Paolillo says the Bernabeu giants are keen on Mastour, although insists the player himself is focused on Milan.
He told La Gazzetta dello Sport: “There were contacts in January with Real Madrid, who think a lot of Mastour.
“We will see what happens in the future. For now he thinks only of Milan, but anything can happen in the future.”