In this week’s Sport: MMA superstar Ronda Rousey on playing the Joker and being the baddest woman in sport | As the Ashes continue, England captain Alastair Cook tells us why batting is like a bar of soap | Five time Open champion Tom Watson bids farewell to St Andrews, while Georgie Bingham gets acquainted with the course | Team Sky's Sam Rowe on riding himself into the ground for Chris Froome in the Tour de France | Plus: Andy Roddick on why his friends call him 'dumbass'
