WTA Finals 2015: Petra

Petra Kvitova and Agnieszka Radwanska advanced to the title match at the WTA Finals Saturday after upset victories in semifinal matches in Singapore.

Agnieszka Radwanska beats Petra Kvitova to win WTA Finals

Muguruza marches, Kvitova scrambles into WTA semis - Newspaper

WTA Finals 2015: Petra

Petra Kvitova, Agnieszka Radwanska Advance To Championship Match At 2015 WTA Finals

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Serena Williams's Conspicuous Absence Strikes the WTA Finals - The New York Times

Petra Kvitová - Wikipedia

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Sharapova happy with Singapore swing despite defeat

Petra Kvitova, WTA Finals 2015 - (WTA Year End Championship…

WTA Finals 2015: Petra

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