Manchester City boss Sven Goran Eriksson admits Vedran Corluka's future could be at centre-half.
Eriksson said: "He's a very good central defender. He's very stubborn, not that aggressive, but is more elegant and solves all the problems.
"Sometimes you have the feeling 'is he quick or not?' because he's doing exactly what he needs to do and nothing more - that is good. He's another one who is just 21-years-old."