Berdych and Kvitová beaten in China Open semi-final matches

The two Czech tennis hopefuls Tomáš Berdych and Petra Kvitová were both knocked out in the semi-finals of the China Open on Saturday. Tomáš Berdych retired with a back injury during his match against Rafael Nadal, handing the 27-year-old Spaniard an easy passage to Sunday's final. Meanwhile Jelena Jankovic beat Petra Kvitová 2:1.