From what I can tell he's not worth £10m, he's only 23 (not the age Arsenal need to be looking for) and he's also quite small. I think that for £10m there are better players out there. Apparently he has potential to be good though, he's just not the answer this summer.
Ah well. At least it's only the sun that is saying anything about it. But then, other than Hangeland, I don't really know of a CB for Arsenal, in their price bracket.