Being Belgian, I visit some Dutch football sites (we speak the same language and there's a great lack of good Belgian football sites) so I think I can say that I know quite a lot of Dutch football and I think he could be a real quality signing. He's got good fighting spirit and he's quite versatile. As has been said before, he can play centre back, right back and even defensive midfield. Don't be fooled by the fact that Atletico wants to let him go for less then they bought him just a year ago. He scores quite a lot for a defender, has a good cross pass, plays with a lot of devotion... He's the kind of player that becomes a fan's favourite in just a few weeks I reckon.