Best of the U.S. Open

Bianca Andreescu of Canada kisses the U.S. Open championship trophy after beating Serena Williams of the USA in the women s singles final. Robert Deutsch-USA TODAY Sports

Rafael Nadal of Spain celebrates match point against Daniil Medvedev of Russia in the men s final match. Robert Deutsch-USA TODAY Sports

Bianca Andreescu of Canada (left) greets Serena Williams of the USA after the women s singles final. Robert Deutsch-USA TODAY Sports

Rafael Nadal of Spain celebrates with the championship trophy after beating Daniil Medvedev of Russia in the men s singles final. Robert Deutsch-USA TODAY Sports

Meghan, Duchess of Sussex, greets Oracene Price as she arrives to watch the women's singles final match between Serena Williams of the United States and Bianca Andreescu of Canada on day thirteen. Robert Deutsch-USA TODAY Sports

Daniil Medvedev of Russia hits to Rafael Nadal of Spain in the men s final match. Robert Deutsch-USA TODAY Sports

Bianca Andreescu of Canada celebrates match point against Serena Williams of the United States in the women's singles final. Danielle Parhizkaran-USA TODAY Sports

Serena Williams of the USA reacts after a miss to Bianca Andreescu of Canada in the women s final match. Robert Deutsch-USA TODAY Sports

Belinda Bencic of Switzerland reacts after a lost point against Bianca Andreescu of Canada (not pictured) in a semifinal match on day eleven. Robert Deutsch-USA TODAY Sports

Serena Williams of the USA reacts after defeating Elina Svitolina of Ukraine (not pictured) in a semifinal match on day eleven. Robert Deutsch-USA TODAY Sports

Rafael Nadal of Spain hits to Diego Schwartzman of Argentina in a quarterfinal match on day ten. Robert Deutsch-USA TODAY Sports

Diego Schwartzman of Argentina after a missed shot to Rafael Nadal of Spain in a quarterfinal match on day ten. Robert Deutsch-USA TODAY Sports

Matteo Berrettini of Italy celebrates after match point against Gael Monfils of France (not pictured) in a quarterfinal match on day ten. Geoff Burke-USA TODAY Sports

Gael Monfils of France hits to Matteo Berrettini of Italy in a quarterfinal match on day ten. Robert Deutsch-USA TODAY Sports

Johanna Konta of Great Britain hits a forehand against Elina Svitolina of Ukraine (not pictured) in a quarterfinal match on day nine. Geoff Burke-USA TODAY Sports

Grigor Dimitrov of Bulgaria wins the quarterfinal match against Roger Federer of Switzerland on day nine. Danielle Parhizkaran-USA TODAY Sports

Roger Federer of Switzerland prepares to leave the court after his match against Grigor Dimitrov of Bulgaria (not pictured) in a quarterfinal match on day nine. Geoff Burke-USA TODAY Sports

Belinda Bencic of Switzerland reacts after beating Donna Vekic of Croatia in a quarterfinal match on day ten. Robert Deutsch-USA TODAY Sports

Donna Vekic of Croatia hits to Belinda Bencic of Switzerland in a quarterfinal match on day ten. Robert Deutsch-USA TODAY Sports

Daniil Medvedev of Russia is interviewed on court after beating Stan Wawrinka of Switzerland in a quarterfinal match on day nine. Robert Deutsch-USA TODAY Sports

Serena Williams of the USA celebrates a winner against Qiang Wang of China in a quarterfinal match on day nine. Robert Deutsch-USA TODAY Sports

Elina Svitolina of Ukraine celebrates her win over Johanna Konta of Great Britain in a quarterfinal match on day nine. Danielle Parhizkaran-USA TODAY Sports

Naomi Osaka of Japan (left) consoles Coco Gauff of the USA after their third round match on day six. Robert Deutsch-USA TODAY Sports

Julia Goerges of Germany serves to Kiki Bertens of the Netherlands in the third round on day six. Danielle Parhizkaran-USA TODAY Sports

Diego Schwartzman of Argentina hits a return from between his legs to Alexander Zverev of Germany in the fourth round on day eight. Robert Deutsch-USA TODAY Sports

Alexander Zverev of Germany hits to Diego Schwartzman of Argentina in the fourth round on day eight. Robert Deutsch-USA TODAY Sports

Rafael Nadal of Spain celebrates match point against Marin Cilic of Croatia in the fourth round on day eight. Robert Deutsch-USA TODAY Sports

Taylor Townsend of the United States is hit by a shot against Bianca Andreescu of Canada in the fourth round on day eight. Geoff Burke-USA TODAY Sports

Andrey Rublev of Russia licks his tennis racket in a third round match against Nick Kyrgios of Australia on day six. Danielle Parhizkaran-USA TODAY Sports

Naomi Osaka of Japan hits to Magda Linette of Poland in the second round on day four. Danielle Parhizkaran-USA TODAY Sports

Gael Monfils of France hits the match winning point against Marius Copil of Romania in a second round match on day four. Jerry Lai-USA TODAY Sports

Coco Gauff of the United States celebrates her victory over Timea Babos of Hungary (not pictured) on day four. Danielle Parhizkaran-USA TODAY Sports

"Call me Coco" is written on the sneakers of Coco Gauff of the United States during her match against Timea Babos of Hungary (not pictured) on day four. Danielle Parhizkaran-USA TODAY Sports

Nick Kyrgios of Australia hits a forehand Antoine Hoang of France (not pictured) in the second round on day four. Geoff Burke-USA TODAY Sports

Danielle Collins of the USA reacts against Caroline Wozniacki of Denmark (not pictured) the second round on day four. Robert Deutsch-USA TODAY Sports

Novak Djokovic of Serbia gets help from a trainer between games while playing Juan Ignacio Londero of Argentina in the second round on day three. Robert Deutsch-USA TODAY Sports

Serena Williams of the USA after a missed return to Catherine McNally of the USA in the second round on day three. Robert Deutsch-USA TODAY Sports

Alexander Zverev of German serves against Frances Tiafoe of the United States in a second round match on day four. Jerry Lai-USA TODAY Sports

Lauren Davis of the United States kicks the ball in frustration after an error against Ashleigh Barty of Australia in the second round on day three. Danielle Parhizkaran-USA TODAY Sports

Kobe Bryant (left) and Colin Kaepernick applaud Naomi Osaka of Japan during her second round match against Magda Linette of Poland in day four. Danielle Parhizkaran-USA TODAY Sports

Timea Babos of Hungary serves against Coco Gauff of the United States in a second round match on day four. Jerry Lai-USA TODAY Sports

Alexander Zverev of Germany (right) talks with Frances Tiafoe of the USA after defeating Tiafoe in the second round on day four. Robert Deutsch-USA TODAY Sports

Caroline Wozniacki of Denmark hits to Danielle Collins of the USA (not pictured) the second round on day four. Robert Deutsch-USA TODAY Sports

Andrea Petkovic of Germany hits to Petra Kvitova of the Czech Republic in the second round on day four. Danielle Parhizkaran-USA TODAY Sports

Taylor Townsend of the USA reads from a book between games against Simone Halep of Romania in the second round on day four. Robert Deutsch-USA TODAY Sports

Alize Cornet of France serves against Belinda Bencic of Switzerland in a second round match on day four. Jerry Lai-USA TODAY Sports

Kei Nishikori of Japan hits to Bradley Klahn of the United States in the second round on day three. Danielle Parhizkaran-USA TODAY Sports

Aryna Sabalenka of Belarus celebrates after match point against Victoria Azarenka of Belarus in the first round on day two. Geoff Burke-USA TODAY Sports

Maria Sharapova of Russia serves against Serena Williams of the United States in a first round match on day one. Jerry Lai-USA TODAY Sports

Stan Wawrinka of Switzerland hits a forehand against Jannik Sinner of Italy in the first round on day one. Geoff Burke-USA TODAY Sports

Misaki Doi of Japan hits a forehand against Madison Keys of the United States in the first round on day one. Geoff Burke-USA TODAY Sports

Roger Federer of Switzerland, left, and Sumit Nagal of India shake hands after their match in the first round on day one. Danielle Parhizkaran-USA TODAY Sports