Adriano says former Barcelona teammate Arda Turan shouldn't give up on making it at the Nou Camp.

The Besiktas defender has no doubts about Turan's ability.

He said: "I think that Arda has the ability to be a starter in Barcelona.

"When he arrived he could not play for six months for the transfer ban. From that it was quite difficult to get to the same level as others.

"He also had injuries.

"But I think that Arda can overcome all obstacles and will be the player we know."