Former Arsenal captain Gilberto Silva says Fabio Vieira needs to stop being so hard on himself.
Gilberto now lives in Porto, where the Gunners play tonight in the first-leg of their Champions League round 16 tie.
On Arsenal's former Porto star Vieira, Gilberto told O Jogo: He is a great player, but in terms of his style and the coach's vision, he is very close to (Martin) Odegaard.
"You have good ideas and dynamics but you have to assume this condition and the quality you have.
"I believe he will be used more, it has enormous capacity, he just has to let himself go."