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HONG KONG - SEPTEMBER 19: Kei Nishikori on a junk boat during an ATP World Tour media day on September 19, 2014 in Hong Kong. (Photo by Anthony Kwan/Getty Images)

HONG KONG - SEPTEMBER 19:  Kei Nishikori on a junk boat during an ATP World Tour media day on September 19, 2014 in Hong Kong.  (Photo by Anthony Kwan/Getty Images)