Kvitova sets up Serena clash

Rising Czech star Petra Kvitova will play a maiden grand slam semi-final against defending champion Serena Williams on Thursday after staging a stunning fightback against Estonian qualifier Kaia Kanepi.

The 20-year-old left-hander saved five match points and came from a double break down in the final set to gain a thrilling 4-6 7-6 (10/8) 8-6 victory in an epic quarter-final.