Nole is three wins away from his first Olympic title.
World no.1 Novak Djokovic continued his bid for a calendar Golden Slam.
The Serbian star is into the quarterfinals at the Tokyo Olympics, following a 6-3, 6-1 victory over Spain’s Alejandro Davidovich Fokina at Ariake Tennis Park on Wednesday.
Novak broke the 16th seed once in the first set and three times in the second to seal the win after one hour and 23 minutes of play.
Match statistics: aces (9-0), double faults (1-2), winners (11-12), unforced errors (12-23), total points won (67-44).
Novak will face Japan’s Kei Nishikori (16-2 H2H) in the last eight.
The 20-time Grand Slam champion is bidding to become the first man to win a calendar “Golden Slam” (all four Grand Slams + the Olympics in one year)
Djokovic partnered Nina Stojanovic in the mixed doubles competition. The Serbian duo combined superbly to defeat Brazilians Marcelo Melo and Luisa Stefani 6-3, 6-4.
For a place in the semi-finals they will take on German combination of Laura Siegemund und Kevin Krawietz.