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MELBOURNE, AUSTRALIA - JANUARY 18: Yafan Wang of China plays a backhand in her first round match against Maria Sakkari of Greece during day one of the 2016 Australian Open at Melbourne Park on January 18, 2016 in Melbourne, Australia. (Photo by Pat Scala/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 18:  Yafan Wang of China plays a backhand in her first round match against Maria Sakkari of Greece during day one of the 2016 Australian Open at Melbourne Park on January 18, 2016 in Melbourne, Australia.  (Photo by Pat Scala/Getty Images)