5. David Luiz (Chelsea)
Because of his adventurous play and knack for scoring goals, it is perhaps easy to overlook David Luiz’s defensive faults. The Brazilian often suffers from a lack of concentration, making silly mistakes at the back and finding himself out of position because he’s wandered up field. No doubt a player with good technique who could perhaps be better used in midfield, but still an unreliable hot-head who can get himself in trouble with a reckless foul or argument with a referee. He seems to have fooled Real Madrid and Barcelona though, who are both keen on signing him for big money this summer, and Jose Mourinho is said to be content with letting him go if he returns to Stamford Bridge.