see more

MONTE-CARLO, MONACO - APRIL 13: Jiri Vesely of the Czech Republic celebrates victory during his second round match against Novak Djokovic of Serbia on day four of the Monte Carlo Rolex Masters at Monte-Carlo Sporting Club on April 13, 2016 in Monte-Carlo, Monaco. (Photo by Michael Steele/Getty Images)

MONTE-CARLO, MONACO - APRIL 13:  Jiri Vesely of the Czech Republic celebrates victory during his second round match against Novak Djokovic of Serbia on day four of the Monte Carlo Rolex Masters at Monte-Carlo Sporting Club on April 13, 2016 in Monte-Carlo, Monaco.  (Photo by Michael Steele/Getty Images)