Barcelona coach Xavi was delighted with Alejandro Balde's performance in victory at Real Betis.

Xavi has declared Balde is a key to the club's future.

He said, "He has to exploit his potential: we encourage him to continue, we encourage him to be transcendent, today he was in the play of the first goal.

"He is one more guarantee for the team.

What he is doing is not normal for his age."