The Latest: Bencic, Sakkari return to 4th round at US Open
Belinda Bencic, of Switzerland, reacts during the third round of the US Open tennis championships against Jessica Pegula, of the United States, Saturday, Sept. 4, 2021, in New York. (AP Photo/Seth Wenig)

Belinda Bencic, of Switzerland, reacts during the third round of the US Open tennis championships against Jessica Pegula, of the United States, Saturday, Sept. 4, 2021, in New York. (AP Photo/Seth Wenig)

Sep. 04, 2021 01:59 PM EDT
Novak Djokovic, of Serbia, returns a shot to Talon Griekspoor, of the Netherlands, during the second round of the US Open tennis championships, Thursday, Sept. 2, 2021, in New York. (AP Photo/Frank Franklin II)

Novak Djokovic, of Serbia, returns a shot to Talon Griekspoor, of the Netherlands, during the second round of the US Open tennis championships, Thursday, Sept. 2, 2021, in New York. (AP Photo/Frank Franklin II)

Sep. 02, 2021 08:10 PM EDT
Bianca Andreescu, of Canada, reacts after defeating Greet Minnen, of Belgium, during the third round of the US Open tennis championships, Saturday, Sept. 4, 2021, in New York. (AP Photo/Seth Wenig)

Bianca Andreescu, of Canada, reacts after defeating Greet Minnen, of Belgium, during the third round of the US Open tennis championships, Saturday, Sept. 4, 2021, in New York. (AP Photo/Seth Wenig)

Sep. 04, 2021 12:26 PM EDT
Maria Sakkari, of Greece, reacts after scoring a point against Petra Kvitova, of the Czech Republic, during the third round of the US Open tennis championships, Saturday, Sept. 4, 2021, in New York. (AP Photo/John Minchillo)

Maria Sakkari, of Greece, reacts after scoring a point against Petra Kvitova, of the Czech Republic, during the third round of the US Open tennis championships, Saturday, Sept. 4, 2021, in New York. (AP Photo/John Minchillo)

Sep. 04, 2021 01:33 PM EDT