Wesley Sneijder says facing Real Madrid is a great test for Ajax pair Matthijs de Ligt and Frenkie de Jong.

Both players have been linked with Barcelona.

Sneijder told Marca: "This match will be a major test for them. They have enough quality and they'll have great futures, but it's difficult to know more right now. This is a good test to see what level they're at.

"Their mentality is very good and that is an advantage for them. I have no doubt that they're going to be really great players. Are they ready to make this jump now? We'll see..."