Barcelona legend Xavi says management must persist with Ousmane Dembele.

The World Cup winner is again on the outer at Barca following the arrival of Antoine Griezmann and a catalog of more disciplinary problems.

But Xavi told ARA: "Always trust Dembélé? Yes, he has a huge potential. He is fast, skillful and uses both his feet, which complicates the life of defenders. But if (Lionel) Messi asks from him more professionalism, it must be true. He has injuries. He is a young boy and he has the ability to mature, no doubt.

"But it also depends on him. I knew players with a lot of potential who did not evolve afterwards. And at the same time, players with less potential have been in Barcelona for many years. It's a question of mentality."