Just looked at his body - THIS IS PERFECT !!!! - you guys are all into what he can do but the secret to every great 'Natural' defender type is the body frame. He has that body frame that Rio, and Hierro has - to me that says lean, speed, flexibility, and high towering overview of all that he can see !!! YES !!! - problem with Sako - is he is too muscle-bound like and that's why he seems a little dopey when being turned like Giroud, and Defoe did to him.
Are you judging a player by their gait?