Roger Federer, Novak Djokovic, Lionel Messi and Usain Bolt – four legendary sporting names but which one does Ronnie O’Sullivan describe as «The Guv'nor»? The Rocket gave one of these feted athletes that coveted moniker after he was asked by Manchester United legend and BT Sport expert Rio Ferdinand who he looked up most across the sporting spectrum in Eurosport’s brand-new series, Voice Notes. Ad The new format will see fans, athletes, celebrities and more ask questions to their sporting heroes. O'Sullivan fielded questions from fans, plus a myriad of big names including Chris Froome, Reanne Evans and Raymond van Barneveld.