MELBOURNE, AUSTRALIA - JANUARY 18: Maria Sharapova of Russia plays a forehand in her first round match against Nao Hibino of Japan during day one of the 2016 Australian Open at Melbourne Park on January 18, 2016 in Melbourne, Australia. (Photo by Darrian Traynor/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 18:  Maria Sharapova of Russia plays a forehand in her first round match against Nao Hibino of Japan during day one of the 2016 Australian Open at Melbourne Park on January 18, 2016 in Melbourne, Australia.  (Photo by Darrian Traynor/Getty Images)