TOKYO, JAPAN - JULY 30: Pablo Carreno Busta of Team Spain plays a forehand during his Men's Singles Semifinal match against Karen Khachanov of Team ROC on day seven of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 30, 2021 in Tokyo, Japan. (Photo by Ezra Shaw/Getty Images)
TOKYO, JAPAN - JULY 30: Marcus Daniell of Team New Zealand and Michael Venus of Team New Zealand celebrate victory against Tennys Sandgren of Team USA and Austin Krajicek of Team USA in their Men's Doubles Bronze Medal match on day seven of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 30, 2021 in Tokyo, Japan. (Photo by Ezra Shaw/Getty Images)
TOKYO, JAPAN - JULY 30: Novak Djokovic of Team Serbia plays a backhand during his Men's Singles Semifinal match against Alexander Zverev of Team Germany on day seven of the Tokyo 2020 Olympic Games at Ariake Tennis Park on July 30, 2021 in Tokyo, Japan. (Photo by Clive Brunskill/Getty Images)