Barcelona coach Luis Enrique admits he's delighted with the progress of Sergi Roberto.

Enrique says the utility has become a vital member of his team.

The coach said, "You need to be intelligent, in Sergi's case it is extreme, as in the Bernabeu (last season) he played as a winger, he has also played as an interior midfielder, a defensive midfielder and right-back... You need to be in great physical shape, footballing awareness and quality.

"A player who plays in a deeper position sees things happen in front of him, and can also see the game with his back to it.

"It is clear he is one of my favourites."