Professional sport remains a frustratingly murky world for most mere mortals, so give thanks for those precious moments when the sporting demi-gods part the clouds and allow a few rays of light to illuminate their heavenly lives. The latest to open the book of revelations is Roger Federer, who bared all to that renowned investigative journalist, Rio Ferdinand, in a hard-hitting exchange that had absolutely nothing to do with puffing the fact that both are signed up to Nike. In perhaps the most revealing exchange, Rio grilled Fed on his fashion sensibilities and, in particular, the 'RF' range he recently modelled at Wimbledon. "We always try to do something a bit special," he said. "It's something more personal and it's something people can relate to a bit more." Sure, Rog. Trainers and military-style jackets laden with gold thread just scream grounded common sense in these heady economic times.