"I call him a complete player.
"It's incredible the speed with which he has adapted to our team and his progress on the field can be seen by everybody.
"He is calm, very reserved," revealed the Portugal star. "He is a good friend but, most important is what he does on the pitch for our team.
"He is a key player for this Manchester United team and we hope he carries on in the same way.
"This is a very dynamic Manchester United. A very young team with a very fast, dizzying game.
"We have the perfect balance between experience and youth.
"We have very many great players and are in a great moment. We have everything necessary to win everything we play in."