`` I have had a great season and it 's very nice to play here Petra Fernández beats Caroline Garcia to make semis at WTA Finals . Kvitova wins 6 - 4 6 - 2 to knock world No.1 Woznaicki out of competition . Victoria Azarenka joins Kvitova in the final four after beating China 's Li Na . Agnieszka Radwanska beats Vera Zvonareva to keep hopes of semi ##s alive .
Petra Fernández beats Caroline Garcia to make semis at WTA Finals . Kvitova wins 6 - 4 6 - 2 to knock world No.1 Woznaicki out of competition . Victoria Azarenka joins Kvitova in the final four after beating China 's Li Na . Agnieszka Radwanska beats Vera Zvonareva to keep hopes of semi ##s alive .