![Cori Gauff of United States of America hits a ball during the Ladies' singles third round of the Championships, Wimbledon against Polona Hercog of Slovenia at the All England Lawn Tennis and Cori Gauff of United States of America hits a ball during the Ladies' singles third round of the Championships, Wimbledon against Polona Hercog of Slovenia at the All England Lawn Tennis and](https://c8.alamy.com/comp/2NT9MGF/cori-gauff-of-united-states-of-america-hits-a-ball-during-the-ladies-singles-third-round-of-the-championships-wimbledon-against-polona-hercog-of-slovenia-at-the-all-england-lawn-tennis-and-croquet-club-in-london-united-kingdom-on-july-5-2019-the-yomiuri-shimbun-via-ap-images-2NT9MGF.jpg)
Cori Gauff of United States of America hits a ball during the Ladies' singles third round of the Championships, Wimbledon against Polona Hercog of Slovenia at the All England Lawn Tennis and
![Polona Hercog of Slovenia reacts during her women's singles first round match against Claire Liu of the United States on Day One of the 2018 US Open at the USTA… Polona Hercog of Slovenia reacts during her women's singles first round match against Claire Liu of the United States on Day One of the 2018 US Open at the USTA…](https://i.pinimg.com/564x/6b/85/d5/6b85d506195ee824b8e1d1393a5c1924.jpg)
Polona Hercog of Slovenia reacts during her women's singles first round match against Claire Liu of the United States on Day One of the 2018 US Open at the USTA…
![Mathilde Johansson of France returns a ball during her Sony Swedish Open tennis tournament final against Polona Hercog, not shown, of Slovenia, in Bastad, Sweden, on Sunday July 22, 2012. Hercog won Mathilde Johansson of France returns a ball during her Sony Swedish Open tennis tournament final against Polona Hercog, not shown, of Slovenia, in Bastad, Sweden, on Sunday July 22, 2012. Hercog won](https://c8.alamy.com/comp/2P69WCA/mathilde-johansson-of-france-returns-a-ball-during-her-sony-swedish-open-tennis-tournament-final-against-polona-hercog-not-shown-of-slovenia-in-bastad-sweden-on-sunday-july-22-2012-hercog-won-the-final-2-1-ap-photobjorn-larsson-rosvall-sweden-out-2P69WCA.jpg)