9) Kalidou Koulibaly
The Senegalese international is terrific in the air, can pass like any other top defender and is brilliant at reading the game to make timely interceptions. Add that with his speed and he becomes a nightmare for opposing strikers.
With his versatility to play anywhere in defense, he is the poster kid for the complete modern-day center-back. His style of play is powerful, yet so eloquent. Koulibaly is 6ft 5in tall, weighs 90 kg and is a robust, physically imposing central defender.
No wonder that the 26-year old is being linked to several top clubs all over Europe including the likes of Barcelona and Chelsea. Koulibaly is already one of the top defenders in Europe and a big move at some point will further increase his standing in the footballing world.