Britain Wimbledon Tennis(01 of24)
Open Image ModalKei Nishikori of Japan serves to Simone Bolelli of Italy during the men\'s singles first round match the All England Lawn Tennis Championships in Wimbledon, London, Monday June 29, 2015. (AP Photo/Pavel Golovkin) (credit:ASSOCIATED PRESS)
Britain Wimbledon Tennis(02 of24)
Open Image ModalKei Nishikori of Japan reacts after defeating Simone Bolelli of Italy in the men\'s singles first round match at the All England Lawn Tennis Championships in Wimbledon, London, Monday June 29, 2015. (AP Photo/Pavel Golovkin) (credit:ASSOCIATED PRESS)
Britain Wimbledon Tennis(03 of24)
Open Image ModalKei Nishikori of Japan, right, shakes hands with Andreas Seppi of Italy after losing their Men\'s singles match at the All England Lawn Tennis Championships in Wimbledon, London, Saturday, June 29, 2013. (AP Photo/Alastair Grant) (credit:ASSOCIATED PRESS)
Britain Wimbledon Tennis(04 of24)
Open Image ModalKei Nishikori of Japan returns a ball to Simone Bolelli of Italy during the men\'s singles first round match at the All England Lawn Tennis Championships in Wimbledon, London, Monday June 29, 2015. (AP Photo/Pavel Golovkin) (credit:ASSOCIATED PRESS)
Britain Wimbledon Tennis(05 of24)
Open Image ModalKei Nishikori of Japan serves to Simone Bolelli of Italy during the men\'s singles first round match the All England Lawn Tennis Championships in Wimbledon, London, Monday June 29, 2015. (AP Photo/Pavel Golovkin) (credit:ASSOCIATED PRESS)
Britain Wimbledon Tennis(06 of24)
Open Image ModalKei Nishikori of Japan returns to Simone Bolelli of Italy during the men\'s singles first round match the All England Lawn Tennis Championships in Wimbledon, London, Monday June 29, 2015. (AP Photo/Pavel Golovkin) (credit:ASSOCIATED PRESS)
Britain Wimbledon Tennis(07 of24)
Open Image ModalKei Nishikori of Japan celebrates winning the third set against Simone Bolelli of Italy during the men\'s singles first round match at the All England Lawn Tennis Championships in Wimbledon, London, Monday June 29, 2015. (AP Photo/Pavel Golovkin) (credit:ASSOCIATED PRESS)
Britain Wimbledon Tennis(08 of24)
Open Image ModalKei Nishikori of Japan gestures after missing a shot from Simone Bolelli of Italy during the men\'s singles first round match at the All England Lawn Tennis Championships in Wimbledon, London, Monday June 29, 2015. (AP Photo/Kirsty Wigglesworth) (credit:ASSOCIATED PRESS)
Day One: The Championships - Wimbledon 2015(09 of24)
Open Image ModalLONDON, ENGLAND - JUNE 29: Kei Nishikori of Japan in action in his GentlemenÂs Singles first round match against Simone Bolelli of Italy during day one of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 29, 2015 in London, England. (Photo by Shaun Botterill/Getty Images) (credit:Shaun Botterill via Getty Images)
Britain Wimbledon Tennis(10 of24)
Open Image ModalKei Nishikori of Japan plays a return to Simone Bolelli of Italy during the men\'s singles first round match the All England Lawn Tennis Championships in Wimbledon, London, Monday June 29, 2015. (AP Photo/Kirsty Wigglesworth) (credit:ASSOCIATED PRESS)
Britain Wimbledon Tennis(11 of24)
Open Image ModalKei Nishikori of Japan plays a return to Simone Bolelli of Italy during the men\'s singles first round match the All England Lawn Tennis Championships in Wimbledon, London, Monday June 29, 2015. (AP Photo/Kirsty Wigglesworth) (credit:ASSOCIATED PRESS)
TENNIS-GBR-WIMBLEDON(12 of24)
Open Image ModalJapan\'s Kei Nishikori returns against Italy\'s Simone Bolelli during their men\'s singles first round match on day one of the 2015 Wimbledon Championships at The All England Tennis Club in Wimbledon, southwest London, on June 29, 2015. RESTRICTED TO EDITORIAL USE -- AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/Getty Images) (credit:LEON NEAL via Getty Images)
Britain Wimbledon Tennis(13 of24)
Open Image ModalKei Nishikori of Japan plays a return to Simone Bolelli of Italy during the men\'s singles first round match the All England Lawn Tennis Championships in Wimbledon, London, Monday June 29, 2015. (AP Photo/Kirsty Wigglesworth) (credit:ASSOCIATED PRESS)
Day One: The Championships - Wimbledon 2015(14 of24)
Open Image ModalLONDON, ENGLAND - JUNE 29: Kei Nishikori of Japan in action in his GentlemenÂs Singles first round match against Simone Bolelli of Italy during day one of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 29, 2015 in London, England. (Photo by Shaun Botterill/Getty Images) (credit:Shaun Botterill via Getty Images)
Britain Wimbledon Tennis(15 of24)
Open Image ModalKei Nishikori of Japan serves to Simone Bolelli of Italy during the men\'s singles first round match the All England Lawn Tennis Championships in Wimbledon, London, Monday June 29, 2015. (AP Photo/Kirsty Wigglesworth) (credit:ASSOCIATED PRESS)
Day One: The Championships - Wimbledon 2015(16 of24)
Open Image ModalLONDON, ENGLAND - JUNE 29: Kei Nishikori of Japan plays a forehand in his GentlemenÂs Singles first round match against Simone Bolelli of Italy during day one of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 29, 2015 in London, England. (Photo by Shaun Botterill/Getty Images) (credit:Shaun Botterill via Getty Images)
Day One: The Championships - Wimbledon 2015(17 of24)
Open Image ModalLONDON, ENGLAND - JUNE 29: Kei Nishikori of Japan in action in his GentlemenÂs Singles first round match against Simone Bolelli of Italy during day one of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 29, 2015 in London, England. (Photo by Shaun Botterill/Getty Images) (credit:Shaun Botterill via Getty Images)
Day One: The Championships - Wimbledon 2015(18 of24)
Open Image ModalLONDON, ENGLAND - JUNE 29: Kei Nishikori of Japan in action in his GentlemenÂs Singles first round match against Simone Bolelli of Italy during day one of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 29, 2015 in London, England. (Photo by Shaun Botterill/Getty Images) (credit:Shaun Botterill via Getty Images)
TENNIS-GBR-WIMBLEDON(19 of24)
Open Image ModalJapan\'s Kei Nishikori returns against Italy\'s Simone Bolelli during their men\'s singles first round match on day one of the 2015 Wimbledon Championships at The All England Tennis Club in Wimbledon, southwest London, on June 29, 2015. RESTRICTED TO EDITORIAL USE -- AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/Getty Images) (credit:LEON NEAL via Getty Images)
Day One: The Championships - Wimbledon 2015(20 of24)
Open Image ModalLONDON, ENGLAND - JUNE 29: Kei Nishikori of Japan in action in his GentlemenÂs Singles first round match against Simone Bolelli of Italy during day one of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 29, 2015 in London, England. (Photo by Shaun Botterill/Getty Images) (credit:Shaun Botterill via Getty Images)
The Championships - Wimbledon 2013: Day Six(21 of24)
Open Image ModalLONDON, ENGLAND - JUNE 29: Kei Nishikori of Japan plays a backhand during the Gentlemen\'s Singles third round match against Andreas Seppi of Italy on day six of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 29, 2013 in London, England. (Photo by Mike Hewitt/Getty Images) (credit:Mike Hewitt via Getty Images)
TENNIS-GBR-WIMBLEDON(22 of24)
Open Image ModalJapan\'s Kei Nishikori returns against Italy\'s Andreas Seppi in their third round men\'s singles match on day six of the 2013 Wimbledon Championships tennis tournament at the All England Club in Wimbledon, southwest London, on June 29, 2013. AFP PHOTO / GLYN KIRK - RESTRICTED TO EDITORIAL USE (Photo credit should read GLYN KIRK/AFP/Getty Images) (credit:GLYN KIRK via Getty Images)
The Championships - Wimbledon 2013: Day Six(23 of24)
Open Image ModalLONDON, ENGLAND - JUNE 29: Kei Nishikori of Japan plays a backhand during the Gentlemen\'s Singles third round match against Andreas Seppi of Italy on day six of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 29, 2013 in London, England. (Photo by Mike Hewitt/Getty Images) (credit:Mike Hewitt via Getty Images)
The Championships - Wimbledon 2013: Day Six(24 of24)
Open Image ModalLONDON, ENGLAND - JUNE 29: Kei Nishikori of Japan hits a backhand during his Gentlemen\'s Singles third round match against Andreas Seppi of Italy on day six of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 29, 2013 in London, England. (Photo by Mike Hewitt/Getty Images) (credit:Mike Hewitt via Getty Images)