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MELBOURNE, AUSTRALIA - JANUARY 20: Su-Wei Hsieh of Chinese Taipei plays a backhand in her second round match against Serena Williams of the United States during day three of the 2016 Australian Open at Melbourne Park on January 20, 2016 in Melbourne, Australia. (Photo by Mark Kolbe/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 20:  Su-Wei Hsieh of Chinese Taipei plays a backhand in her second round match against Serena Williams of the United States during day three of the 2016 Australian Open at Melbourne Park on January 20, 2016 in Melbourne, Australia.  (Photo by Mark Kolbe/Getty Images)