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