2017 US Open: Best images from the first round

Naomi Osaka of Japan reacts against Angelique Kerber of Germany during their first round Women’s Singles match on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Naomi Osaka of Japan reacts against Angelique Kerber of Germany during their first round Women’s Singles match on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Naomi Osaka of Japan celebrates defeating Angelique Kerber of Germany in their first round Women’s Singles match on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Naomi Osaka of Japan returns a shot to Angelique Kerber of Germany during their first round Women’s Singles match on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Naomi Osaka of Japan celebrates defeating Angelique Kerber of Germany in their first round Women’s Singles match on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Angelique Kerber of Germany returns a shot to Naomi Osaka of Japan on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Abbie Parr/Getty Images)

Maria Sharapova of Russia reacts during her first round Women’s Singles match against Simona Halep of Romania on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

Maria Sharapova of Russia celebrates winning her first round Women’s Singles match against Simona Halep of Romania on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Maria Sharapova of Russia celebrates winning her first round Women’s Singles match against Simona Halep of Romania on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

Maria Sharapova (R) of Russia shakes hands with Simona Halep of Romania after defeating her in their first round Women’s Singles match on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

Maria Sharapova of Russia serves during her first round Women’s Singles match against Simona Halep of Romania on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

Rafael Nadal of Spain prepares to serve against Dusan Lajovic of Serbia & Montenegro in thier Men’s Singles first round on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Rafael Nadal of Spain serves to Dusan Lajovic of Serbia & Montenegro during their first round Men’s Singles match on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Caroline Wozniacki of Denmark reacts during her first round Women’s Singles match against Mihaela Buzarnescu of Romania on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Misaki Doi of Japan returns a shot to Barbora Strycova of Czech Republic during their first round Women’s Singles match on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Al Bello/Getty Images)

Dominic Thiem of Austria returns a shot to Alex de Minaur of Australia during their first round Men’s Singles match on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

Angelique Kerber of Germany and Naomi Osaka of Japan play in Arthur Ashe Stadium on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Roberta Vinci of Italy and Sloane Stephens of the United States shake hands after their first round Women’s Singles match on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Al Bello/Getty Images)

A general view of Arthur Ashe Stadium as Rafael Nadal of Spain plays against Dusan Lajovic of Serbia & Montenegro during their first round Men’s Singles match on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Steven Ryan/Getty Images)

Venus Williams of the United States reacts during her first round Women’s Single match against Viktoria Kuzmova of Slovakia on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Richard Heathcote/Getty Images)

Viktoria Kuzmova of Slovakia reacts during her first round Women’s Singles match against Venus Williams of the United States on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Richard Heathcote/Getty Images)

David Ferrer of Spain serves during his first round Men’s Singles match against Mikhail Kukushkin of Russia on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Dusan Lajovic of Serbia & Montenegro returns a shot against Rafael Nadal of Spain in their Men’s Singles first round on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Claire Liu of the United States serves during her first round Women’s Singles match against Ying-Ying Duan of China on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

Heather Watson of Great Britain returns a shot during the first round Women’s Singles match against Alize Cornet of France on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

Rafael Nadal of Spain reacts against Dusan Lajovic of Serbia & Montenegro during their first round Men’s Singles match on Day Two of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Donna Vekic of Croatia during her first round Women’s Singles match against Beatriz Haddad Maia of Brazil on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Abbie Parr/Getty Images)

on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City.

Darian King of Barbados reacts against Alexander Zverev Jr. of Germany during their first round Men’s Singles match on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Al Bello/Getty Images)

Shania Twain performs during the opening ceremony on Day One during the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Queens borough of New York City. (Photo by Mike Stobe/Getty Images for USTA)

Aleksandra Krunic of Serbia & Montenegro reacts during her first round Women’s Singles match against Johanna Konta of Great Britain on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Caroline Wozniacki of Denmark serves during her first round Women’s Singles match against Mihaela Buzarnescu of Romania on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City.

Ying-Ying Duan of China returns a shot during her first round Women’s Singles match against Claire Liu of the United States on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

Amandine Hesse of France serves during her first round Women’s Singles match against Shuai Peng of China on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Richard Heathcote/Getty Images)

Johanna Konta of Great Britain returns a shot during her first round Women’s Singles match against Aleksandra Krunic of Serbia & Montenegro on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Caroline Wozniacki of Denmark reacts during her first round Women’s Singles match against Mihaela Buzarnescu of Romania on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)

Johanna Konta of Great Britain serves during her first round Women’s Singles match against Aleksandra Krunic of Serbia & Montenegro on Day One of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)