Highlights of 2019 WTA Qatar Open women's singles quarterfinal match

Kiki Bertens of the Netherlands serves during the women's singles quarterfinal between Elise Mertens of Belgium and Kiki Bertens of the Netherlands at the 2019 WTA Qatar Open in Doha, Qatar, Feb. 14, 2019. Kiki Bertens lost 0-2. (Xinhua/Nikku)