Daniil Medvedev, of Russia, walks gingerly to the net after defeating Alexei Popyrin, of Australia, during the Miami Open tennis tournament, Sunday, March 28, 2021, in Mi...

Serbia's Novak Djokovic hits a backhand return to Canada's Milos Raonic during their fourth round match at the Australian Open tennis championship in Melbourne, Australia...

Marketa Vondrousova of the Czech Republic smashes the ball to Taiwan's Hsieh Su-Wei in front of rows of empty seats during their fourth round match at the Australian Open...