Petra Kvitova beats Caroline Wozniaki 2-1 at 2018 WTA Qatar Open

Petra Kvitova of the Czech Republic celebrates after winning the single's semifinal match against Caroline Wozniaki of Denmark at the 2018 WTA Qatar Open in Doha, Qatar, on Feb. 17, 2018. Petra Kvitova won 2-1. (Xinhua/Nikku)