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Cagla Buyukakcay of Turkey serves during the single's first round match against Petra Kvitova of Czech Republic at the 2018 WTA Qatar Open in Doha, Qatar, on Feb. 13, 2018. Petra Kvitova won 2-0. (Xinhua/Nikku)
Cagla Buyukakcay of Turkey serves during the single's first round match against Petra Kvitova of Czech Republic at the 2018 WTA Qatar Open in Doha, Qatar, on Feb. 13, 2018. Petra Kvitova won 2-0. (Xinhua/Nikku)