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.

WTA Finals: Garbine Muguruza, Petra Kvitova reach s-finals from White Group

WTA Final Singapore Archives - Singapore Event Photographer, Singapore Photography Service

Serena Williams set for Petra Kvitova battle at WTA Championships, Victoria Azarenka excited, Tennis News

Agnieszka Radwanska claims WTA Finals title by beating Petra Kvitova, Tennis

WTA Finals 2015: Petra

Petra Kvitova Stunned by Angelique Kerber in Straight Sets in WTA Finals

WTA Finals 2015 Singapore – Radwanska edges Kvitova out - Cheryl Tay

Kvitova Czechs in at WTA Finals with Safarova win

WTA Finals 2015: Petra

Serena Williams leads glamorous field ahead of WTA Finals as stars prepare ahead of Singapore event

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

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

Happy Halloween! Kvitova back from the dead to make final

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