LONDON, ENGLAND - JUNE 30: Simona Halep of Romania practices with coach Darren Cahill before the start of the Championships at the All England Lawn Tennis and Croquet Club in Wimbledon on June 30, 2018 in London, England. (Photo by TPN/Getty Images)
LONDON, ENGLAND - JUNE 30: Simona Halep of Romania practices with coach Darren Cahill before the start of the Championships at the All England Lawn Tennis and Croquet Club in Wimbledon on June 30, 2018 in London, England. (Photo by TPN/Getty Images)