photos

US Open

Alexander Zverev, of Germany, returns a shot to Dominic Thiem, of Austria, during the men's singles final of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Dominic Thiem, of Austria, serves to Alexander Zverev, of Germany, during the men's singles final of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Dominic Thiem, of Austria, greets Alexander Zverev, of Germany, after defeating Zverev in the men's singles final of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Dominic Thiem, of Austria, right, and Alexander Zverev, of Germany, pose for photos after the men's singles final of the US Open tennis championships, in New York. Thiem defeated Zverev in a tiebreaker.

AP Photo/Frank Franklin II

Dominic Thiem, of Austria, holds up the championship trophy after defeating Alexander Zverev, of Germany, in the men's singles final of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Dominic Thiem, of Austria, holds up the championship trophy after defeating Alexander Zverev, of Germany, in the men's singles final of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Dominic Thiem, of Austria, left, hugs Alexander Zverev, of Germany, after defeating Zverev in the men's singles final of the US Open tennis championships in New York.

Photo by AP/ PTI

Dominic Thiem, of Austria, reacts after defeating Alexander Zverev, of Germany, in the men's singles final of the US Open tennis championships in New York.

Photo by AP/PTI

Naomi Osaka, of Japan, holds up the championship trophy while posing for photographs at the Billie Jean King National Tennis Center in New York.

Photo by AP/PTI

Victoria Azarenka, of Belarus, serves to Naomi Osaka, of Japan, during the women's singles final of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Naomi Osaka, of Japan, returns a shot to Victoria Azarenka, of Belarus, during the women's singles final of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Victoria Azarenka, of Belarus, reacts during the women's singles final against Naomi Osaka, of Japan, during the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Naomi Osaka, of Japan, returns a shot to Victoria Azarenka, of Belarus, during the women's singles final of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Victoria Azarenka, of Belarus, holds the runner-up trophy after losing to Naomi Osaka, of Japan, in the women's singles final of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Naomi Osaka, of Japan, reacts after defeating Victoria Azarenka, of Belarus, in the women's singles final of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Naomi Osaka, of Japan, holds up the championship trophy after defeating Victoria Azarenka, of Belarus, in the women's singles final of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Naomi Osaka, of Japan, holds up the championship trophy after defeating Victoria Azarenka, of Belarus, in the women's singles final of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Naomi Osaka, of Japan, right, poses for a photo with Victoria Azarenka, of Belarus, after winning the women's singles final of the US Open tennis championships, in New York.

AP/PTI Photo

Dominic Thiem, of Austria, serves to Daniil Medvedev, of Russia, during a men's semifinal match of the US Open tennis championships in New York.

Photo by AP/PTI

Alexander Zverev, of Germany, reacts after defeating Pablo Carreno Busta, of Spain, during a men's semifinal match of the US Open tennis championships in New York.

Photo by AP/PTI

Nicole Melichar, of the United States, left, and Laura Siegemund, of Germany, celebrate after defeating Vera Zvonareva, of Russia, and Xu Yifan, of China, during the women's doubles final of the US Open tennis championships in New York.

Photo by AP/PTI

Nicole Melichar, of the United States, left, and Laura Siegemund, of Germany, hold up the championship trophy after defeating Vera Zvonareva, of Russia, and Xu Yifan, of China, during the women's doubles final of the US Open tennis championships in New York.

Photo by AP/PTI

Daniil Medvedev, of Russia, reacts during a men's semifinal match against Dominic Thiem, of Austria, during the US Open tennis championships in New York.

Photo by AP/PTI

Alexander Zverev, of Germany, returns a shot to Pablo Carreno Busta, of Spain, during a men's semifinal match of the US Open tennis championships in New York.

Photo by AP/PTI

Mate Pavic, of Croatia, left, and Bruno Soares, of Brazil, celebrate winning the men's doubles final against Wesley Koolhof, of the Netherlands, and Nikola Mektic, of Croatia, during the US Open tennis championships, in New York.

AP/PTI Photo

Serena Williams, of the United States, returns a shot to Victoria Azarenka, of Belarus, during a semifinal match of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Victoria Azarenka, of Belarus, returns a shot to Serena Williams, of the United States, during a semifinal match of the US Open tennis championships, Thursday, in New York.

AP Photo/Frank Franklin II

Serena Williams, of the United States, reacts during a semifinal match of the US Open tennis championships against Victoria Azarenka, of Belarus, in New York.

AP Photo/Frank Franklin II

Serena Williams, of the United States, reacts during a semifinal match of the US Open tennis championships against Victoria Azarenka, of Belarus, in New York.

AP Photo/Seth Wenig

Victoria Azarenka, of Belarus, reacts during a semifinal match against Serena Williams, of the United States, during the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Victoria Azarenka, of Belarus, reacts after defeating Serena Williams, of the United States, during a semifinal match of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Serena Williams, of the United States, left, greets Victoria Azarenka, of Belarus, after losing to Azarenka in a semifinal match of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Victoria Azarenka, of Belarus, reacts after defeating Serena Williams, of the United States, during a semifinal match of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Naomi Osaka, of Japan, left, greets Jennifer Brady, of the United States, at the net after winning their semifinal match of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Jennifer Brady, of the United States, serves to Naomi Osaka, of Japan, during a semifinal match of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Naomi Osaka, of Japan, reacts after defeating Jennifer Brady, of the United States, in a semifinal match of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Serena Williams, of the United States, reacts during a match against Tsvetana Pironkova, of Bulgaria, during the quarterfinals of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Tsvetana Pironkova, of Bulgaria, falls to the court during a match against Serena Williams, of the United States, during the quarterfinals of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Andrey Rublev, of Russia, reacts during a match against Daniil Medvedev, of Russia, during the quarterfinals of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Victoria Azarenka, of Belarus, returns to Elise Mertens, of Belgium, during the quarterfinal round of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Dominic Thiem, of Austria, eyes a return to Alex de Minaur, of Australia, during the quarterfinal round of the US Open tennis championships in New York.

AP Photo/Frank Franklin II

Serena Williams, of the United States, serves to Tsvetana Pironkova, of Bulgaria, during the quarterfinals of the US Open tennis championships, in New York.

AP/PTI

Pablo Carreno Busta, of Spain, reacts after defeating Denis Shapovalov, of Canada, during the quarterfinal round of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Jennifer Brady, of the United States, serves to Yulia Putintseva, of Kazakhstan, during the quarterfinals of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Denis Shapovalov, of Canada, eyes a return to Pablo Carreno Busta, of Spain, during the quarterfinal round of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Naomi Osaka, of Japan, plays Shelby Rogers, of the United States, during the quarterfinal round of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Naomi Osaka, of Japan, fires a ball into the stands after defeating Shelby Rogers, of the United States, during the quarterfinal round of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Felix Auger-Aliassime, of Canada, returns a shot to Dominic Thiem, of Austria, during the fourth round of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Frances Tiafoe, of the United States, serves to Daniil Medvedev, of Russia, during the fourth round of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Daniil Medvedev, of Russia, serves to Frances Tiafoe, of the United States, during the fourth round of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Karolina Muchova, of the Czech Republic, returns to Victoria Azarenka, of Belarus, during the fourth round of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Sofia Kenin, of the United States, returns to Elise Mertens, of Belgium, during the fourth round of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Elise Mertens, of Belgium, serves to Sofia Kenin, of the United States, during the fourth round of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Victoria Azarenka, of Belarus, returns to Karolina Muchova, of the Czech Republic, during the fourth round of the US Open tennis championships in New York.

AP Photo/Frank Franklin II

Serena Williams, of the United States, reacts during a quarterfinal match against Maria Sakkari, of Greece, during the US Open tennis championships in New York.

Photo by AP/PTI

Maria Sakkari, of Greece, reacts during a match against Serena Williams, of the United States, during the quarterfinals of the US Open tennis championships in New York

Photo by AP/PTI

Dominic Thiem, of Austria, pumps his fist after defeating Felix Auger-Aliassime, of Canada, during the fourth round of the US Open tennis championships in New York.

Photo by AP/PTI

Serena Williams, of the United States, reacts after defeating Maria Sakkari, of Greece, during the quarterfinals of the US Open tennis championships, in New York.

Photo by AP/PTI

Elise Mertens, of Belgium, right, taps racquets after defeating Sofia Kenin, of the United States, left, during the fourth round of the US Open tennis championships in New York.

Photo by AP/PTI

Alex de Minaur, of Australia, returns a shot to Vasek Pospisil, of Canada, during the quarterfinals of the US Open tennis championships, in New York.

Photo by AP/PTI

Novak Djokovic, of Serbia, serves to Pablo Carreno Busta, of Spain, during the fourth round of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Pablo Carreno Busta, of Spain, serves to Novak Djokovic, of Serbia, during the fourth round of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Novak Djokovic, of Serbia, checks a linesman after hitting her with a ball in reaction to losing a point to Pablo Carreno Busta, of Spain, during the fourth round of the US Open tennis championships, in New York. Djokovic defaulted the match.

AP Photo/Seth Wenig

Novak Djokovic, of Serbia, talks with the umpire after inadvertently hitting a line judge with a ball after hitting it in reaction to losing a point against Pablo Carreno Busta, of Spain, during the fourth round of the US Open tennis championships, in New York. Djokovic defaulted the match.

AP Photo/Seth Wenig

Novak Djokovic, of Serbia, reacts after inadvertently hitting a line judge with a ball after hitting it in reaction to losing a point against Pablo Carreno Busta, of Spain, during the fourth round of the US Open tennis championships, in New York. Djokovic defaulted the match.

AP Photo/Seth Wenig

Pablo Carreno Busta, of Spain, walks off the court after Novak Djokovic, of Serbia, defaulted during the fourth round of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Novak Djokovic, of Serbia, shakes hands with Pablo Carreno Busta, of Spain, after defaulting the match during the fourth round of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Novak Djokovic, of Serbia, leaves the court after defaulting the match to Pablo Carreno Busta, of Spain, during the fourth round of the US Open tennis championships in New York. Djokovic inadvertently hit a line judge with a ball after hitting it in reaction to losing a point against Carreno Busta.

AP Photo/Seth Wenig

Naomi Osaka, of Japan, celebrates after winning a match against Anett Kontaveit, of Estonia, during the fourth round of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Jordan Thompson, left, of Australia, plays against Borna Coric, of Croatia, during the fourth round of the US Open tennis championships in New York.

AP Photo/Frank Franklin II

Shelby Rogers, of the United States, reacts after defeating Petra Kvitova, of the Czech Republic, during the fourth round of the US Open tennis championships in New York.

AP Photo/Frank Franklin II

Petra Kvitova, of the Czech Republic, returns a shot to Shelby Rogers, of the United States, during the fourth round of the US Open tennis championships in New York.

AP Photo/Frank Franklin II

David Goffin, of Belgium, returns a shot to Denis Shapovalov, of Canada, during the fourth round of the US Open tennis championships in New York.

AP Photo/Frank Franklin II

Yulia Putintseva, of Kazakhstan, reacts during a match against Petra Martic, of Croatia, during the fourth round of the US Open tennis championships in New York.

Photo by AP/PTI

Jennifer Brady, of the United States, reacts after defeating Angelique Kerber, of Germany, during the fourth round of the US Open tennis championships in New York.

Photo by AP/PTI

Jennifer Brady, of the United States, serves to to Angelique Kerber, of Germany, during the fourth round of the US Open tennis championships in New York.

Photo by AP/PTI

Dominic Thiem, left, of Austria, plays against Marin Cilic, of Croatia, during the third round of the US Open tennis championships, in New York.

AP Photo/Frank Franklin II

Alize Cornet, of France, reacts while playing against Madison Keys, of the United States, during the third round of the US Open tennis championships in New York.

AP Photo/Frank Franklin II

A trainer works on Madison Keys, of the United States, during her third round match against Alize Cornet, of France, at the US Open tennis championships in New York.

AP Photo/Frank Franklin II

J.J. Wolf, of the United States, returns a shot to Daniil Medvedev, of Russia, during the third round of the US Open tennis championship, in New York.

Photo by AP/PTI

Maria Sakkari, of Greece, serves to Amanda Anisimova, of the United States, during the third round of the US Open tennis championships in New York.

Photo by AP/PTI

Marin Cilic, of Croatia, serves to Dominic Thiem, of Austria, during the third round of the US Open tennis championships in New York.

Photo by AP/PTI

Catherine McNally, of the United States, returns a shot to Elise Mertens, of Belgium, during the third round of the US Open tennis championships in New York.

Photo by AP/PTI

Felix Auger-Aliassime, of Canada, celebrates after winning a match against Corentin Moutet, of France, during the third round of the US Open tennis championships in New York.

Photo by AP/PTI

Serena Williams, of the United States, serves to Sloane Stephens, of the United States, during the third round of the US Open tennis championships in New York.

Photo by AP/PTI

Naomi Osaka, of Japan, returns a shot to Marta Kostyuk, of the Ukraine, during the third round of the US Open tennis championships, in New York.

AP Photo/Seth Wenig

Marta Kostyuk, of the Ukraine, returns a shot to Naomi Osaka, of Japan, during the third round of the US Open tennis championships in New York.

AP Photo/Seth Wenig

Jan-Lennard Struff, of Germany, returns a shot at the net to Novak Djokovic, of Serbia, during the third round of the U.S. Open tennis championships in New York.

AP Photo/Frank Franklin II

Novak Djokovic, of Serbia, reacts to missing a point to Jan-Lennard Struff, of Germany, during the third round of the U.S. Open tennis championships in New York.

AP Photo/Frank Franklin II

Jessica Pegula, of the United States, right, taps rackets with Petra Kvitova, of the Czech Republic, after their third round match of the U.S. Open tennis championships in New York. Kvitova won the match.

AP Photo/Frank Franklin II

Stefanos Tsitsipas, of Greece, stretches out to return a shot to Borna Coric, of Croatia, during the third round of the U.S. Open tennis championships in New York.

AP Photo/Frank Franklin II

Borna Coric, of Croatia, reacts to winning his five set match with Stefanos Tsitsipas, of Greece, during the third round of the U.S. Open tennis championships in New York.

AP Photo/Frank Franklin II

Katrina Scott, of the United States, returns a shot to Amanda Anisimova, of the United States, during the second round of the US Open tennis championships in New York.

AP/PTI

Sofia Kenin, of the United States, serves to Leylah Fernandez, of Canada, during the second round of the US Open tennis championships, in New York.

AP/PTI

Sloane Stephens, of the United States, returns a shot to Olga Govortsova, of Belarus, during the second round of the US Open tennis championships in New York.

AP/PTI

Victoria Azarenka, of Belarus, returns a shot to Anastasija Sevastova, of Latvia, during the third round of the U.S. Open tennis championships in New York.

AP/PTI

Daniil Medvedev, of Russia, top, taps rackets with Christopher O'Connell, of Australia, during the third round of the U.S. Open tennis championships, in New York. Medvedev won the match.

AP Photo/Frank Franklin II

Serena Williams, of the United States, left, taps rackets with Margarita Gasparyan, of Russia, during the third round of the U.S. Open tennis championships, in New York. Williams won the match.

AP/PTI

Richard Gasquet, of France, returns a shot to Alex de Minaur, of Australia, during the second round of the US Open tennis championships in New York.

AP Photo/Seth Wenig

Leylah Fernandez, of Canada, returns a shot to Sofia Kenin, of the United States, during the second round of the US Open tennis championships in New York.

AP Photo/Seth Wenig