France Tennis French Open(01 of26)
Open Image ModalJapan\'s Kei Nishikori reacts after defeating Russia\'s Teymuraz Gabashvili during their fourth round match of the French Open tennis tournament at the Roland Garros stadium, Sunday, May 31, 2015 in Paris. Nishikori won 6-3, 6-4, 6-2. (AP Photo/Christophe Ena) (credit:ASSOCIATED PRESS)
France Tennis French Open(02 of26)
Open Image ModalJapan\'s Kei Nishikori , right, shakes hands with Russia\'s Teymuraz Gabashvili after their fourth round match of the French Open tennis tournament at the Roland Garros stadium, Sunday, May 31, 2015 in Paris. Nishikori won 6-3, 6-4, 6-2. (AP Photo/Christophe Ena) (credit:ASSOCIATED PRESS)
France Tennis French Open(03 of26)
Open Image ModalJapan\'s Kei Nishikori returns the ball to Russia\'s Teymuraz Gabashvili during their fourth round match of the French Open tennis tournament at the Roland Garros stadium, Sunday, May 31, 2015 in Paris. Nishikori won 6-3, 6-4, 6-2. (AP Photo/Christophe Ena) (credit:ASSOCIATED PRESS)
France Tennis French Open(04 of26)
Open Image ModalJapan\'s Kei Nishikori celebrates winning his the fourth round match of the French Open tennis tournament against Russia\'s Teymuraz Gabashvili in three sets 6-3, 6-4, 6-2, at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Michel Euler) (credit:ASSOCIATED PRESS)
APTOPIX France Tennis French Open(05 of26)
Open Image ModalRussia\'s Teymuraz Gabashvili screams as he misses a return and subsequently gets hit by the ball in his fourth round match of the French Open tennis tournament against Japan\'s Kei Nishikori at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Christophe Ena) (credit:ASSOCIATED PRESS)
France Tennis French Open(06 of26)
Open Image ModalJapan\'s Kei Nishikori returns in the fourth round match of the French Open tennis tournament against Russia\'s Teymuraz Gabashvili at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Michel Euler) (credit:ASSOCIATED PRESS)
France Tennis French Open(07 of26)
Open Image ModalJapan\'s Kei Nishikori celebrates winning his the fourth round match of the French Open tennis tournament against Russia\'s Teymuraz Gabashvili in three sets 6-3, 6-4, 6-2, at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Michel Euler) (credit:ASSOCIATED PRESS)
France Tennis French Open(08 of26)
Open Image ModalJapan\'s Kei Nishikori reacts after defeating Russia\'s Teymuraz Gabashvili during their fourth round match of the French Open tennis tournament at the Roland Garros stadium, Sunday, May 31, 2015 in Paris. Nishikori won 6-3, 6-4, 6-2. (AP Photo/Christophe Ena) (credit:ASSOCIATED PRESS)
France Tennis French Open(09 of26)
Open Image ModalRussia\'s Teymuraz Gabashvili returns in the fourth round match of the French Open tennis tournament against Japan\'s Kei Nishikori at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Michel Euler) (credit:ASSOCIATED PRESS)
France Tennis French Open(10 of26)
Open Image ModalRussia\'s Teymuraz Gabashvili closes his eyes after missing a return in the fourth round match of the French Open tennis tournament against Japan\'s Kei Nishikori at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Christophe Ena) (credit:ASSOCIATED PRESS)
France Tennis French Open(11 of26)
Open Image ModalJapan\'s Kei Nishikori returns in the fourth round match of the French Open tennis tournament against Russia\'s Teymuraz Gabashvili at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Christophe Ena) (credit:ASSOCIATED PRESS)
France Tennis French Open(12 of26)
Open Image ModalJapan\'s Kei Nishikori returns in the fourth round match of the French Open tennis tournament against Russia\'s Teymuraz Gabashvili at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Christophe Ena) (credit:ASSOCIATED PRESS)
France Tennis French Open(13 of26)
Open Image ModalA spectator struggles with his umbrella as Japan\'s Kei Nishikori plays the fourth round match of the French Open tennis tournament against Russia\'s Teymuraz Gabashvili at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Christophe Ena) (credit:ASSOCIATED PRESS)
France Tennis French Open(14 of26)
Open Image ModalJapan\'s Kei Nishikori wipes his face in the fourth round match of the French Open tennis tournament against Russia\'s Teymuraz Gabashvili at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Michel Euler) (credit:ASSOCIATED PRESS)
France Tennis French Open(15 of26)
Open Image ModalJapan\'s Kei Nishikori clenches his fist after scoring a point in his fourth round match of the French Open tennis tournament against Russia\'s Teymuraz Gabashvili at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Michel Euler) (credit:ASSOCIATED PRESS)
France Tennis French Open(16 of26)
Open Image ModalRussia\'s Teymuraz Gabashvili returns in the fourth round match of the French Open tennis tournament against Japan\'s Kei Nishikori at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Michel Euler) (credit:ASSOCIATED PRESS)
France Tennis French Open(17 of26)
Open Image ModalJapan\'s Kei Nishikori returns in the fourth round match of the French Open tennis tournament against Russia\'s Teymuraz Gabashvili at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Michel Euler) (credit:ASSOCIATED PRESS)
France Tennis French Open(18 of26)
Open Image ModalJapan\'s Kei Nishikori returns in the fourth round match of the French Open tennis tournament against Russia\'s Teymuraz Gabashvili at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Michel Euler) (credit:ASSOCIATED PRESS)
France Tennis French Open(19 of26)
Open Image ModalJapanese tennis lovers display their national flag as Japan\'s Kei Nishikori plays Russia\'s Teymuraz Gabashvili during their fourth round match of the French Open tennis tournament at the Roland Garros stadium, Sunday, May 31, 2015 in Paris, France. (AP Photo/Christophe Ena) (credit:ASSOCIATED PRESS)
France Tennis French Open(20 of26)
Open Image ModalJapan\'s Kei Nishikori returns in the fourth round match of the French Open tennis tournament against Russia\'s Teymuraz Gabashvili at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Michel Euler) (credit:ASSOCIATED PRESS)
France Tennis French Open(21 of26)
Open Image ModalRussia\'s Teymuraz Gabashvili returns in the fourth round match of the French Open tennis tournament against Japan\'s Kei Nishikori at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Michel Euler) (credit:ASSOCIATED PRESS)
France Tennis French Open(22 of26)
Open Image ModalJapan\'s Kei Nishikori returns in the fourth round match of the French Open tennis tournament against Russia\'s Teymuraz Gabashvili at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Michel Euler) (credit:ASSOCIATED PRESS)
France Tennis French Open(23 of26)
Open Image ModalJapan\'s Kei Nishikori returns the ball to Russia\'s Teymuraz Gabashvili during their fourth round match of the French Open tennis tournament at the Roland Garros stadium, Sunday, May 31, 2015 in Paris, France. (AP Photo/Christophe Ena) (credit:ASSOCIATED PRESS)
France Tennis French Open(24 of26)
Open Image ModalJapan\'s Kei Nishikori returns the ball to Russia\'s Teymuraz Gabashvili during their fourth round match of the French Open tennis tournament at the Roland Garros stadium, Sunday, May 31, 2015 in Paris, France. (AP Photo/Christophe Ena) (credit:ASSOCIATED PRESS)
France Tennis French Open(25 of26)
Open Image ModalJapan\'s Kei Nishikori returns the ball to Russia\'s Teymuraz Gabashvili during their fourth round match of the French Open tennis tournament at the Roland Garros stadium, Sunday, May 31, 2015 in Paris, France. (AP Photo/Christophe Ena) (credit:ASSOCIATED PRESS)
France Tennis French Open(26 of26)
Open Image ModalRussia\'s Teymuraz Gabashvili serves in the fourth round match of the French Open tennis tournament against Japan\'s Kei Nishikori at the Roland Garros stadium, in Paris, France, Sunday, May 31, 2015. (AP Photo/Michel Euler) (credit:ASSOCIATED PRESS)