If only this guy was 24 years old, with experience at top level, i would be quite happy. But seeing as he's another "prospect" when we urgently need a CB and DM, it all a bit meh for me. We've been there and got excited by all the young "prospects", but only a small few actually made it, or even warrant playing for us.
Also Cini65, whilst I appreciate your point of view about us needing to buy a DM and CB (I think just about everybody agrees with that) I don't think you should use that as a marker to slate this singing. He's a raw talent agreed, but Wenger has a good track record at unearthing talent and as others have said this transfer should be taken on it's own merit. There is a transfer thread for moaning about the lack of DM and CB, but this thread should really be kept in context, which is that we've signed a promising youngster in a position we need to strengthen and develop for the future also.
So the signing is complete, hopefully this guy isn't the CB-DMF signing we are all hoping for, as the website is saying he can play at CB, and knowing Wenger, before too long this guy will be being touted as someone brought in for CB cover.