Australia's Ashleigh Barty celebrates winning a point against Czech Republic's Katerina Siniakova during the women's singles third round match on day six of the Wimbledon Tennis Championships in London, Saturday July 3, 2021. (AP Photo/Alastair Grant)

Australia's Ashleigh Barty plays a return to Czech Republic's Katerina Siniakova during the women's singles third round match on day six of the Wimbledon Tennis Championships in London, Saturday July 3, 2021. (AP Photo/Alastair Grant)