TOKYO, JAPAN - JULY 28: Michael Venus of Team New Zealand and Marcus Daniell of Team New Zealand celebrate after match point during their Men's Doubles Quarterfinal match against Robert Farah of Team Colombia and Juan-Sebastian Cabalon of Team Colombia day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by David Ramos/Getty Images)
TOKYO, JAPAN - JULY 28: Ugo Humbert of Team France plays a forehand during his Men's Singles Third Round match against Stefanos Tsitsipas of Team Greeceon day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by Clive Brunskill/Getty Images)
TOKYO, JAPAN - JULY 28: Novak Djokovic of Team Serbia plays a forehand during his Men's Singles Third Round match against Alejandro Davidovich Fokina of Team Spain on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by Clive Brunskill/Getty Images)
TOKYO, JAPAN - JULY 28: Belinda Bencic of Team Switzerland celebrates after a point during her Women's Singles Quarterfinal match against Anastasia Pavlyuchenkova of Team ROC on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by David Ramos/Getty Images)
TOKYO, JAPAN - JULY 28: Marin Cilic of Team Croatia celebrates after match point during his Men's Doubles Quarterfinal match with Ivan Dodig of Team Croatia against Andy Murray of Team Great Britain and Joe Salisbury of Team Great Britain on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by Clive Brunskill/Getty Images)
TOKYO, JAPAN - JULY 28: Belinda Bencic of Team Switzerland plays a forehand during her Women's Singles Quarterfinal match against Anastasia Pavlyuchenkova of Team ROC on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by David Ramos/Getty Images)
TOKYO, JAPAN - JULY 28: Elina Svitolina of Team Ukraine celebrates after match point during her Women's Singles Quarterfinal match against Camila Giorgi of Team Italy on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by Clive Brunskill/Getty Images)
TOKYO, JAPAN - JULY 28: Novak Djokovic of Team Serbia plays a forehand during his Men's Singles Third Round match against Alejandro Davidovich Fokina of Team Spain on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by Clive Brunskill/Getty Images)
TOKYO, JAPAN - JULY 28: Garbine Muguruza of Team Spain plays a forehand during her Women's Singles Quarterfinal match against Elena Rybakina of Team Kazakhstan on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by Clive Brunskill/Getty Images)
TOKYO, JAPAN - JULY 28: Alexander Zverev of Team Germany serves during his Men's Singles Third Round match against Nikoloz Basilashvili of Team Georgia on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by David Ramos/Getty Images)
TOKYO, JAPAN - JULY 28: Elena Rybakina of Team Kazakhstan serves during her Women's Singles Quarterfinal match against Garbine Muguruza of Team Spain on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by Clive Brunskill/Getty Images)
TOKYO, JAPAN - JULY 28: Stefanos Tsitsipas of Team Greece plays a forehand during his Men's Singles Third Round match against Ugo Humbert of Team France on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by Clive Brunskill/Getty Images)
TOKYO, JAPAN - JULY 28: Stefanos Tsitsipas of Team Greece plays a backhand during his Men's Singles Third Round match against Ugo Humbert of Team France on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by Clive Brunskill/Getty Images)
TOKYO, JAPAN - JULY 28: Novak Djokovic of Team Serbia plays a forehand during his Men's Singles Third Round match against Alejandro Davidovich Fokina of Team Spain on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by Clive Brunskill/Getty Images)
TOKYO, JAPAN - JULY 28: Camila Giorgi of Team Italy plays a forehand during her Women's Singles Quarterfinal match against Elina Svitolina of Team Ukraine on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by Clive Brunskill/Getty Images)
TOKYO, JAPAN - JULY 28: Fabio Fognini of Team Italy plays a forehand during his Men's Singles Third Round match against Daniil Medvedev of Team ROC on day five of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 28, 2021 in Tokyo, Japan. (Photo by David Ramos/Getty Images)