After Novak Djokovic defeated Rafael Nadal for the seventh time in eight meetings, Catherine Whitaker and David Law discuss whether Nadal will ever be a dominant force again.Also in Beijing, Garbine Muguruza emerged triumphant in the WTA Premier Mandatory tournament. Will she win a Grand Slam title in 2016?And, in a week when Catherine was 'swanning around Mallorca' on the ATP Champions Tour, the result was an exclusive interview with Alex Corretja in which he described what it was like to coach Andy Murray. He also reminisces about his first practice session with a 16-year-old Rafael Nadal.  See acast.com/privacy for privacy and opt-out information.