Ashleigh Barty, of Australia, holds the trophy after defeating Jil Teichmann, of Switzerland, to win the women's single final of the Western & Southern Open tennis tournament, Sunday, Aug. 22, 2021, in Mason, Ohio. (AP Photo/Darron Cummings)

Ashleigh Barty, of Australia, reacts after defeating Jil Teichmann, of Switzerland, in the women's single final of the Western & Southern Open tennis tournament, Sunday, Aug. 22, 2021, in Mason, Ohio. (AP Photo/Darron Cummings)

Jil Teichmann, of Switzerland, returns to Ashleigh Barty, of Australia, during the women's single final of the Western & Southern Open tennis tournament Sunday, Aug. 22, 2021, in Mason, Ohio. (AP Photo/Aaron Doster)

Ashleigh Barty, of Australia, reaches but is unable to return to Jil Teichmann, of Switzerland, during the women's single final of the Western & Southern Open tennis tournament Sunday, Aug. 22, 2021, in Mason, Ohio. (AP Photo/Aaron Doster)

Ashleigh Barty, of Australia, acknowledges the crowd after defeating Jil Teichmann, of Switzerland, in the women's single final of the Western & Southern Open tennis tournament Sunday, Aug. 22, 2021, in Mason, Ohio. (AP Photo/Aaron Doster)

Ashleigh Barty, of Australia, runs after a shot by Jil Teichmann, of Switzerland, in the women's single final of the Western & Southern Open tennis tournament, Sunday, Aug. 22, 2021, in Mason, Ohio. (AP Photo/Darron Cummings)