Tennis: Krejčíková defeats Gauff to reach semifinals at WTA Finals

Czech tennis player Barbora Krejčíková has advanced to the semi-finals at of the WTA Finals in Riyadh after defeating Coco Gauff 7-5, 6-4. The Czech Wimbledon champion secured her place as the Orange Group winner at the expense of World No 2 Iga Swiatek, who need her to lose in order to progress from the group stage. The Czech will face China's top-ranked player Zheng Qinwen in the semifinals.