Real Sociedad coach Philippe Montanier is well aware of Real Madrid youngster Raphael Varane.

The young Frenchman is tipped for greatness.

"Against us, Madrid can field a centre-back partnership of Varane - who is going to be world-class, in my opinion - and [Ricardo] Carvalho, a hugely experienced player," said the Real coach.

"Whoever plays in goal though, we'll be up against a top keeper."