The Gunners enjoyed a 4-1 win at the KCOM.
"He's getting slowly there," said Wenger.
"He is not completely ready physically but today I felt in the second half he was much better than the first. He has interesting qualities for us. He goes behind, many players like to come to the ball and he's one of the players who is very dangerous for the quality of his runs and his receptions. I think today in the first half he was influential on the ball. He scored one as well, so he's efficient and that's what you want."