Petra Kvitova ousts top seed Aryna Sabalenka as favourites exit Dubai
Aryna Sabalenka and Barbora Krejcikova, the top two seeds, both crashed to second-round defeats in the Dubai WTA tournament on Wednesday, with defending champion Garbine Muguruza also exiting on a day of upsets. Belarusian Sabalenka, the world number two, fell 6-4, 6-4 to former Dubai winner Petra Kvitova. French Open champion Krejcikova lost 6-3, 7-6 (7/3) to qualifier Dayana Yastremska of Ukraine.