TENNIS-ESP-ATP(01 of10)
Open Image ModalJapanese player Kei Nishikori serves against Swiss player Roger Federer during their men\'s singles third round tennis match at the Madrid Masters at the Magic Box (Caja Magica) sports complex in Madrid on May 9, 2013. Nishikori won the match 6-4, 1-6, 6-2. AFP PHOTO / JAVIER SORIANO (Photo credit should read JAVIER SORIANO/AFP/Getty Images) (credit:Getty Images)
TENNIS-ESP-ATP(02 of10)
Open Image ModalSwiss player Roger Federer returns the ball to Japanese player Kei Nishikori during their men\'s singles third round tennis match at the Madrid Masters at the Magic Box (Caja Magica) sports complex in Madrid on May 9, 2013. AFP PHOTO / JAVIER SORIANO (Photo credit should read JAVIER SORIANO/AFP/Getty Images) (credit:Getty Images)
TENNIS-ESP-ATP(03 of10)
Open Image ModalJapanese player Kei Nishikori returns the ball to Swiss player Roger Federer during their men\'s singles third round tennis match at the Madrid Masters at the Magic Box (Caja Magica) sports complex in Madrid on May 9, 2013. Nishikori won the match 6-4, 1-6, 6-2. AFP PHOTO / JAVIER SORIANO (Photo credit should read JAVIER SORIANO/AFP/Getty Images) (credit:Getty Images)
TENNIS-ESP-ATP(04 of10)
Open Image ModalSwiss player Roger Federer serves against Japanese player Kei Nishikori during their men\'s singles third round tennis match at the Madrid Masters at the Magic Box (Caja Magica) sports complex in Madrid on May 9, 2013. AFP PHOTO / JAVIER SORIANO (Photo credit should read JAVIER SORIANO/AFP/Getty Images) (credit:Getty Images)
Mutua Madrid Open - Day Six(05 of10)
Open Image ModalMADRID, SPAIN - MAY 09: Kei Nishikori of Japan jumps to serve the ball to Roger Federer of Switzerland on day six of the Mutua Madrid Open tennis tournament at the Caja Magica on May 9, 2013 in Madrid, Spain. (Photo by Jasper Juinen/Getty Images) (credit:Getty Images)
Mutua Madrid Open - Day Six(06 of10)
Open Image ModalMADRID, SPAIN - MAY 09: Roger Federer of Switzerland serves the ball during his match against Kei Nishikori of Japan on day six of the Mutua Madrid Open tennis tournament at the Caja Magica on May 9, 2013 in Madrid, Spain. (Photo by Jasper Juinen/Getty Images) (credit:Getty Images)
TENNIS-ESP-ATP(07 of10)
Open Image ModalJapanese player Kei Nishikori returns the ball to Swiss player Roger Federer during their men\'s singles third round tennis match at the Madrid Masters at the Magic Box (Caja Magica) sports complex in Madrid on May 9, 2013. Nishikori won the match 6-4, 1-6, 6-2. AFP PHOTO / JAVIER SORIANO (Photo credit should read JAVIER SORIANO/AFP/Getty Images) (credit:Getty Images)
TENNIS-ESP-ATP(08 of10)
Open Image ModalSwiss player Roger Federer returns the ball to Japanese player Kei Nishikori during their men\'s singles third round tennis match at the Madrid Masters at the Magic Box (Caja Magica) sports complex in Madrid on May 9, 2013. AFP PHOTO / JAVIER SORIANO (Photo credit should read JAVIER SORIANO/AFP/Getty Images) (credit:Getty Images)
TENNIS-ESP-ATP(09 of10)
Open Image ModalJapanese player Kei Nishikori celebrates after winning his men\'s singles third round tennis match against Swiss player Roger Federer at the Madrid Masters at the Magic Box (Caja Magica) sports complex in Madrid on May 9, 2013. Nishikori won the match 6-4, 1-6, 6-2. AFP PHOTO / JAVIER SORIANO (Photo credit should read JAVIER SORIANO/AFP/Getty Images) (credit:Getty Images)
TENNIS-ESP-ATP(10 of10)
Open Image ModalSwiss player Roger Federer leaves at the end of his men\'s singles third round tennis match against Japanese player Kei Nishikori at the Madrid Masters at the Magic Box (Caja Magica) sports complex in Madrid on May 9, 2013. Nishikori won the match 6-4, 1-6, 6-2. AFP PHOTO / JAVIER SORIANO (Photo credit should read JAVIER SORIANO/AFP/Getty Images) (credit:Getty Images)