![Angelique Kerber vs. Kiki Bertens | 2019 Porsche Tennis Grand Prix Quarterfinal | WTA Highlights - YouTube Angelique Kerber vs. Kiki Bertens | 2019 Porsche Tennis Grand Prix Quarterfinal | WTA Highlights - YouTube](https://i.ytimg.com/vi/wC3lFH82wMg/maxresdefault.jpg)
Angelique Kerber vs. Kiki Bertens | 2019 Porsche Tennis Grand Prix Quarterfinal | WTA Highlights - YouTube
![Kiki Bertens of the Netherlands returns a shot to Angelique Kerber of Germany during their women's singles match at the WTA tennis tournament in Singapore on Monday, Oct. 22, 2018. (AP Photo/Vincent Kiki Bertens of the Netherlands returns a shot to Angelique Kerber of Germany during their women's singles match at the WTA tennis tournament in Singapore on Monday, Oct. 22, 2018. (AP Photo/Vincent](https://c8.alamy.com/comp/2MMA9N2/kiki-bertens-of-the-netherlands-returns-a-shot-to-angelique-kerber-of-germany-during-their-womens-singles-match-at-the-wta-tennis-tournament-in-singapore-on-monday-oct-22-2018-ap-photovincent-thian-2MMA9N2.jpg)
Kiki Bertens of the Netherlands returns a shot to Angelique Kerber of Germany during their women's singles match at the WTA tennis tournament in Singapore on Monday, Oct. 22, 2018. (AP Photo/Vincent
![Marketa Vondrousova powers past No. 13 Kiki Bertens in a see-saw thriller - Official Site of the 2023 US Open Tennis Championships - A USTA Event Marketa Vondrousova powers past No. 13 Kiki Bertens in a see-saw thriller - Official Site of the 2023 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_USTA1035352_20180901_Day6_GE2_0817.jpg)
Marketa Vondrousova powers past No. 13 Kiki Bertens in a see-saw thriller - Official Site of the 2023 US Open Tennis Championships - A USTA Event
![2018 US Open Spotlight: Kiki Bertens - Official Site of the 2023 US Open Tennis Championships - A USTA Event 2018 US Open Spotlight: Kiki Bertens - Official Site of the 2023 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_Bertens_Trophy_20180820.jpg)