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MADRID, SPAIN - MAY 05: Kei Nishikori of Japan in action against Ivan Dodig of Croatia in their first round match during day three of the Mutua Madrid Open tennis tournament at the Caja Magica on May 5, 2014 in Madrid, Spain. (Photo by Clive Brunskill/Getty Images)

MADRID, SPAIN - MAY 05: Kei Nishikori of Japan in action against Ivan Dodig of Croatia in their first round match during day three of the Mutua Madrid Open tennis tournament at the Caja Magica on May 5, 2014 in Madrid, Spain.  (Photo by Clive Brunskill/Getty Images)