Stefanos Tsitsipas of Greece hits a return during the men's singles third round match against Aljaz Bedene of Slovenia in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Petra Kvitova of the Czech Republic hits a return during the women's singles third round match between Petra Kvitova of the Czech Republic and Leylah Fernandez of Canada in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Novak Djokovic of Serbia hits a return during the men's singles third round match against Daniel Galan of Colombia in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Daniel Galan of Colombia hits a return during the men's singles third round match against Novak Djokovic of Serbia in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Novak Djokovic of Serbia hits a return during the men's singles third round match against Daniel Galan of Colombia in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Petra Kvitova of the Czech Republic serves during the women's singles third round match between Petra Kvitova of the Czech Republic and Leylah Fernandez of Canada in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Leylah Fernandez of Canada hits a return during the women's singles third round match between Petra Kvitova of the Czech Republic and Leylah Fernandez of Canada in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Leylah Fernandez of Canada competes during the women's singles third round match between Petra Kvitova of the Czech Republic and Leylah Fernandez of Canada in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Stefanos Tsitsipas of Greece serves during the men's singles third round match against Aljaz Bedene of Slovenia in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Aljaz Bedene of Slovenia hits a return during the men's singles third round match against Stefanos Tsitsipas of Greece in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Novak Djokovic of Serbia serves during the men's singles third round match against Daniel Galan of Colombia in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Petra Kvitova of the Czech Republic hits a return during the women's singles third round match between Petra Kvitova of the Czech Republic and Leylah Fernandez of Canada in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Leylah Fernandez of Canada hits a return during the women's singles third round match between Petra Kvitova of the Czech Republic and Leylah Fernandez of Canada in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Stefanos Tsitsipas of Greece hits a return during the men's singles third round match against Aljaz Bedene of Slovenia in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Novak Djokovic of Serbia hits a return during the men's singles third round match against Daniel Galan of Colombia in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Petra Kvitova of the Czech Republic hits a return during the women's singles third round match between Petra Kvitova of the Czech Republic and Leylah Fernandez of Canada in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Aljaz Bedene of Slovenia hits a return during the men's singles third round match against Stefanos Tsitsipas of Greece in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)

Daniel Galan of Colombia hits a return during the men's singles third round match against Novak Djokovic of Serbia in the French Open tennis tournament 2020 at Roland Garros in Paris, France, Oct. 3, 2020. (Photo by Aurelien Morissard/Xinhua)