Put it this way.. He should be Brazil's first choice CB next to Thiago Silva, had Menez not had some love-affair with out of form Lucio. And that is a big claim to make. I think he is our next Carvalho (LOL love how people deny this now). He's made mistakes, and he'll learn from those as he plays more. Experience is vital and unfortunately he hasn't got to play that much for us under Villas-Boas because of Copa America, fatigue and now an injury. Only time will tell if he lives up to his potential. P.S. Also agree with people rubbishing the claim he should play at DM or RB. It's well known the central areas (CF & CB) are the most risky to play youngsters, but if United can fit Phil Jones in there, of course we can make David Luiz a permanent member in that back line.