Besides his height what else could you ask from a Barca CB? To me he is one of the best in the world at winning 1 on 1 duels against attackers. Which is really important for a Barcelona defender because they are often caught in those situations with the way we attack and press ultra high up the pitch.
He should tattoo all the faces of the players he's stolen the ball away from on his body. The ones who looked like through on goal. Robben etc.. He's a small guy, maye they wouldn't fit, dno.