For me it has to be Robbie Keane or Mascherano pound for pound value wise, having said that 20 million on the likes of Johnson, Henderson, Downing not to mention Andy Carroll could all take the title, time is on there side the way they are going.
Mascherano???
He without doubt has to be the most limited footballer ever to pull on a red shirt, could tackle not too bad but was quite reckless, could'nt head, could'nt pass, could'nt really run or dribble, could'nt score goals and was a liability as he normaly saw red, all for price of 20 million pound or so, terrible one paced, negative spoiler of a player as bad as Batty, Ray Wilkins and Deschamps the Water Carrier.