Toni Nadal coach of Rafael Nadal of Spain looks on during a training session prior to the Nitto ATP World Tour Finals at O2 Arena on November 10 2017...
{"Image ImageDescription": "LONDON, ENGLAND - NOVEMBER 10: Toni Nadal, coach of Rafael Nadal of Spain looks on during a training session prior to the Nitto ATP World Tour Finals at O2 Arena on November 10, 2017 in London, England.  (Photo by Julian Finney/Getty Images)", "Image Copyright": "2017 Getty Images"}