Can't say I've watched the bloke, but is an 18 year old what we need? He'd have to be special in that case, because I think we need more experience rather than youthful exuberance. We are most likely, hopefully, getting all of Arteta, Flamini and Rosicky off our books in the summer, and then there is certainly room for a kid like this, but only if accompanied by another ready made, top class central mid IMO.
