Goias U17 coach Nilton is convinced Arthur can make at at Barcelona.

Nilton worked with Arthur as a junior player in Brazil.

He told Sport: "He was a very perceptive footballer and carries the ball really well. Since he was a child, one aspect of his style which is really important is that he loves to find his teammates as well as creating space for them. He always goes forward. It's a gift he has.

"His father and I are cousins. Ailton tried to make it as a professional footballer. He played as an amateur and understood the game really well. In fact, Arthur's style is very similar to that of his father. Ailton knew how talented Arthur was because he went to every training session and came to every match, helping me take all the children in his car."