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MELBOURNE, AUSTRALIA - JANUARY 25: Shuai Zhang of China reacts in her forth round match against Madison Keys of the United Statesduring day eight of the 2016 Australian Open at Melbourne Park on January 25, 2016 in Melbourne, Australia. (Photo by Mark Kolbe/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 25:  Shuai Zhang of China reacts in her forth round match against Madison Keys of the United Statesduring day eight of the 2016 Australian Open at Melbourne Park on January 25, 2016 in Melbourne, Australia.  (Photo by Mark Kolbe/Getty Images)