The Frenchman also hinted that the talented Brazilian will have to wait some time before he will get a chance as a midfielder in the Gunners’ first-team.
Wenger said: “I felt he had a great game. He’s just 18 and he had a tremendous presence and a tremendous engine. I felt he did extremely well.
“I look to fast track all of my young players but I can only play 11 and the ones who play already in the first-team are not too bad you know.”