While addressing the media on Friday, Arteta said: “I’m really impressed with him. I heard a lot of things about him. I spoke to a lot of people about him. He’s really bright, has very special energy and a special aura around him. He's really willing.
“He's already gathered a lot of information on the things that we want to see on the pitch. But especially, making sure that he has the freedom and the capacity to express his quality, which is the reason why we brought him here.
“I think when you are next to him, you are comfortable. He's got a big smile. He asks you the right questions. And then just let him flow with that ball and the ability he has to pick passes, to drive past people effortlessly and just to understand the timing of things, very impressive."