Tennis

A fan yawns as he watches the match between Kei Nishikori, of Japan, and Milos Raonic, of Canada, during the fourth round of the 2014 U.S. Open tennis tournament Tuesday, Sept. 2, 2014, in New York. (AP Photo/Darron Cummings)

Darron Cummings/AP

A fan yawns as he watches the match between Kei Nishikori, of Japan, and Milos Raonic, of Canada, during the fourth round of the 2014 U.S. Open tennis tournament on Tuesday. Read more

Fans on Murray Mount enjoy the sun as they watch the action on a big screen during day eleven of the Wimbledon Championships at the All England Lawn Tennis and Croquet Club, Wimbledon. PRESS ASSOCIATION Photo. Picture date: Thursday July 3, 2014.

Jonathan Brady/PA

Fans on Murray Mount enjoy the sun as they watch the action on a big screen during day eleven of the Wimbledon Championships at the All England Lawn Tennis and Croquet Club, Wimbledon

Great Britain's Andy Murray celebrates a point against Bulgaria's Grigor Dimitrov during day ten of the Wimbledon Championships at the All England Lawn Tennis and Croquet Club, Wimbledon. PRESS ASSOCIATION Photo. Picture date: Wednesday July 2, 2014.

John Walton/PA

Great Britain’s Andy Murray celebrates a point against Grigor Dimitrov of Bulgaria during their quarter-final match in the Wimbledon Championships. Murray went on to lose in straight sets

Roger Federer of Switzerland serves during his men's singles tennis match against Tommy Robredo of Spain at the Wimbledon Tennis Championships, in London...Roger Federer of Switzerland serves during his men's singles tennis match against Tommy Robredo of Spain at the Wimbledon Tennis Championships, in London July 1, 2014.    REUTERS/Toby Melville (BRITAIN  - Tags: SPORT TENNIS)

Toby Melville/Reuters

Roger Federer of Switzerland serves during his men’s singles tennis match against Tommy Robredo of Spain at the Wimbledon Tennis Championships on Tuesday, which he won in three sets Read more

Spectators take cover from the rain at the Wimbledon Tennis Championships, in London June 30, 2014.

Max Rossi/Reuters

Spectators take cover from the rain at the Wimbledon Tennis Championships in London

Tennis - 2014 Wimbledon Championships - Day Three - The All England Lawn Tennis and Croquet Club...Andy Murray playing Blaz Rola on day three of the Wimbledon Championships at the All England Lawn Tennis and Croquet Club, Wimbledon. PRESS ASSOCIATION Photo. Picture date: Wednesday June 25, 2014. See PA story TENNIS Wimbledon. Photo credit should read: Philip Toscano/PA Wire. RESTRICTIONS: Editorial use only. No video emulation. No false commercial association. No manipulation of images. No use with any unofficial third party logos. No transmission of images to mobile services.

Philip Toscano/PA

Andy Murray playing Blaz Rola on day three of the Wimbledon Championships at the All England Lawn Tennis and Croquet Club, Wimbledon

Rafael Nadal of Spain reacts after defeating Martin Klizan of Slovaki in their men's singles tennis match at the Wimbledon Tennis Championships, in London...Rafael Nadal of Spain reacts after defeating Martin Klizan of Slovaki in their men's singles tennis match at the Wimbledon Tennis Championships, in London June 24, 2014.

Suzanne Plunkett/Reuters

Rafael Nadal of Spain reacts after defeating Martin Klizan of Slovaki in their men’s singles tennis match at the Wimbledon Tennis Championships, in London

Tennis - 2014 Wimbledon Championships - Day One - The All England Lawn Tennis and Croquet Club...The order or play is prepared during day one of the Wimbledon Championships at the All England Lawn Tennis and Croquet Club, Wimbledon. PRESS ASSOCIATION Photo. Picture date: Monday June 23, 2014. See PA story TENNIS Wimbledon. Photo credit should read: Gareth Fuller/PA Wire. RESTRICTIONS: Editorial use only. No video emulation. No false commercial association. No manipulation of images. No use with any unofficial third party logos. No transmission of images to mobile services.

Gareth Fuller/PA

The order of play is prepared during day one of the Wimbledon Championships at the All England Lawn Tennis and Croquet Club in London Read more

Workers sweep water off a tarp as rain interrupts a men's singles match between Djokovic of Serbia and Sousa of Portugal at the French Open tennis tournament at the Roland Garros stadium in Paris...Workers sweep water off a tarp as rain interrupts a men's singles match between Novak Djokovic of Serbia and Joao Sousa of Portugal at the French Open tennis tournament at the Roland Garros stadium in Paris May 26, 2014.     REUTERS/Gonzalo Fuentes

Gonzalo Fuentes/Reuters

Workers sweep water off tarpaulin as rain interrupts the men’s singles match between Novak Djokovic of Serbia and Joao Sousa of Portugal at the French Open tennis tournament, Roland Garros stadium, Paris

Gamini Dissanayake, 36, an army soldier and member of Sri Lanka's wheelchair tennis national team serves during a practice session in Colombo May 6, 2014. The Sri Lankan national wheelchair team is made up of active armed forces members who lost their limbs during active duty.

Dinuka Liyanawatte/Reuters

Gamini Dissanayake, 36, an army soldier and member of Sri Lanka’s national wheelchair tennis team, trains in Colombo. The team is made up of active members of the armed forces who lost limbs on duty.