MADRID, SPAIN - MAY 11:  Rafael Nadal of Spain makes his victory speach as Kei Nishikori of Japan shows his dejection after he retired injured in the third set in their final match during day nine of the Mutua Madrid Open tennis tournament at the Caja Magica on May 11, 2014 in Madrid, Spain.  (Photo by Clive Brunskill/Getty Images)