Real Madrid coach Jose Mourinho has explained why he's yet to field Nacho, despite their injury problems.

The young defender has been called into the first team squad, but is yet to feature.

Mourinho explained: "It is a problem because in Castilla he is a central defender and in the first team a right back. It is a problem because normally a player's training should not contain contradictions , and in the first team he will not play as a central defender and in his usual team he does.

"If the education has contradictions it is more difficult , and in the final stages of his sporting education there are contradictions."