LONDON, ENGLAND - JULY 10:  The final score is seen on the court one scoreboard after the Gentlemen's Singles fourth round match between Rafael Nadal of Spain and Gilles Muller of Luxembourg on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2017 in London, England.  (Photo by Clive Brunskill/Getty Images)
LONDON, ENGLAND - JULY 10:  A general view of court number one during the Gentlemen's Singles fourth round match between Rafael Nadal of Spain and Gilles Muller of Luxembourg on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2017 in London, England.  (Photo by David Ramos/Getty Images)
LONDON, ENGLAND - JULY 10:  Rafael Nadal of Spain (R) acknowledges the crowd in defeat after the Gentlemen's Singles fourth round match against  Gilles Muller of Luxembourg (L) on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2017 in London, England.  (Photo by David Ramos/Getty Images)
LONDON, ENGLAND - JULY 10:  Gilles Muller of Luxembourg signals during the Gentlemen's Singles fourth round match against Rafael Nadal of Spain on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2017 in London, England.  (Photo by David Ramos/Getty Images)
LONDON, ENGLAND - JULY 10:  Rafael Nadal of Spain stretches for the ball during the Gentlemen's Singles fourth round match against Gilles Muller of Luxembourg on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2017 in London, England.  (Photo by Michael Steele/Getty Images)