In Search of Greatness review - Gabe Polsky's absorbing sports documentary
Icons including Pelé impart their wisdom
Ask any great sportsman or woman about greatness and they'll tell you it's as much achieved as made; natal talent isn't worth much if you don't practise, or are unfit, or don't have a hunger to win. But much of modern sport has become obsessed with statistics, performance levels and the crunching of numbers – many with dollar or pound signs in front.