RIO DE JANEIRO, BRAZIL - AUGUST 13:  Andy Murray of Great Britain celebrates after defeating Kei Nishikori of Japan in the Men's Singles Semifinal Match on Day 8 of the Rio 2016 Olympic Games at the Olympic Tennis Centre on August 13, 2016 in Rio de Janeiro, Brazil. Murray defeated Nishikori 6-1, 6-4.  (Photo by Clive Brunskill/Getty Images)