'Why?!' - Rafael Nadal not happy with umpire after a time violation for 'late' return from toilet

Rafael Nadal was not happy on Thursday as he received a time violation for a 'late' return from the toilet during his match against Jason Kubler. Nadal's comeback after almost a year out injured following hip surgery and extended rehabilitation continued with a classy 6-1 6-2 win over Australia's Kubler.