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.

Singapore. 31st Oct, 2015. Maria Sharapova of Russia hits a return during the semi-final match against Petra Kvitova of the Czech Republic at WTA Finals in the Singapore Indoor Stadium, on Oct.

Garbine Muguruza, Angelique Kerber win at WTA Finals

SINGAPORE-TENNIS-WTA FINALS

WTA Finals: Petra Kvitova to face Agnieszka Radwanska in final - BBC Sport

Tennis fashion spotlight: Petra Kvitova's 2016 with Nike

WTA Finals: Kvitova beats Safarova to boost chances of reaching semi-finals

Serena's absence gives rivals hope in WTA Finals - Eurosport

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

WTA Finals 2015 preview: Halep, Muguruza, Sharapova lead field - Sports Illustrated

Happy Halloween! Kvitova back from the dead to make final

WTA Finals Singapore 2015: Maria Sharapova, Simona Halep drawn together in red group

Kvitova Czechs in at WTA Finals with Safarova win

Agnieszka Radwanska beats Petra Kvitova to win WTA Finals

2,943 Wta Finals 2015 Stock Photos, High-Res Pictures, and Images - Getty Images

WTA Finals: Kvitova upsets Sharapova, to face Radwanska in final