![Ekaterina Alexandrova of Russia during her second-round match at the 2021 Porsche Tennis Grand Prix, WTA 500 tournament on April 22, 2021 at Porsche Arena in Stuttgart, Germany - Photo Rob Prange / Ekaterina Alexandrova of Russia during her second-round match at the 2021 Porsche Tennis Grand Prix, WTA 500 tournament on April 22, 2021 at Porsche Arena in Stuttgart, Germany - Photo Rob Prange /](https://c8.alamy.com/comp/2FA5BAP/ekaterina-alexandrova-of-russia-during-her-second-round-match-at-the-2021-porsche-tennis-grand-prix-wta-500-tournament-on-april-22-2021-at-porsche-arena-in-stuttgart-germany-photo-rob-prange-spain-dppi-dppi-livemedia-2FA5BAP.jpg)
Ekaterina Alexandrova of Russia during her second-round match at the 2021 Porsche Tennis Grand Prix, WTA 500 tournament on April 22, 2021 at Porsche Arena in Stuttgart, Germany - Photo Rob Prange /
![Marta Kostyuk d'Ukraine en action lors du deuxième tour du tournoi de tennis WTA Chicago Womens Open WTA 250 de 2021 contre Kaia Kanepi d'Estonie le 24 août 2021 à Chicago, Etats-Unis - Marta Kostyuk d'Ukraine en action lors du deuxième tour du tournoi de tennis WTA Chicago Womens Open WTA 250 de 2021 contre Kaia Kanepi d'Estonie le 24 août 2021 à Chicago, Etats-Unis -](https://c8.alamy.com/compfr/2gfd4h7/marta-kostyuk-d-ukraine-en-action-lors-du-deuxieme-tour-du-tournoi-de-tennis-wta-chicago-womens-open-wta-250-de-2021-contre-kaia-kanepi-d-estonie-le-24-aout-2021-a-chicago-etats-unis-photo-rob-prange-espagne-dppi-dppi-2gfd4h7.jpg)
Marta Kostyuk d'Ukraine en action lors du deuxième tour du tournoi de tennis WTA Chicago Womens Open WTA 250 de 2021 contre Kaia Kanepi d'Estonie le 24 août 2021 à Chicago, Etats-Unis -
![Saint Petersburg, Russia - 15 March 2021: Tennis, Jelena Ostapenko of Latvia plays during a match against Paula Badosa (not seen) of Spain at the St.Petersburg Ladies Trophy 2021 tennis tournament. Tennis Saint Petersburg, Russia - 15 March 2021: Tennis, Jelena Ostapenko of Latvia plays during a match against Paula Badosa (not seen) of Spain at the St.Petersburg Ladies Trophy 2021 tennis tournament. Tennis](https://c8.alamy.com/comp/2F359AE/saint-petersburg-russia-15-march-2021-tennis-jelena-ostapenko-of-latvia-plays-during-a-match-against-paula-badosa-not-seen-of-spain-at-the-stpetersburg-ladies-trophy-2021-tennis-tournament-tennis-player-elena-ostapenko-2F359AE.jpg)