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Kiki Bertens bowing out on her terms after Tokyo 2020 | ITF
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Kiki Bertens - Wikipedia
Kiki Bertens column: I considered retiring at 25 because I wasn't having fun on court - BBC Sport
Marin Cilic easily beats Evgeny Donskoy to reach round three, Mardy Fish bows out - Eurosport
Dutch star Kiki Bertens retires from professional tennis
Madrid Open – Sports Africa
Kiki Bertens Heads to the U.S. Open on a Roll. She Hopes You Don't Notice. - The New York Times
Champions Corner: Kiki Bertens breaks down her Cincinnati breakthrough
Kiki Bertens bowing out on her terms after Tokyo 2020 | ITF
Polona Hercog - Wikipedia
Dutch star Kiki Bertens retires from professional tennis
The tank is quite empty,' says Kiki Bertens as she announces 2021 will be her final season - Tennis365
Dutch star Kiki Bertens retires from professional tennis
Kvitova Routs Bouchard in R2 of Connecticut Open – Sofascore News
Ekaterina Alexandrova - Wikipedia
