Hsieh Su-Wei and Jelena Ostapenko took the lead in the Martina Nacratilova Group at the WTA Finals Riyadh with a straight-sets defeat of Sara Errani and Jasmine Paolini.
Though No. 5 women's tennis player Madison Keys won her opening match at the BNP Paribas Open in straight sets, her second appearance on Monday against Elise Mertens was a nailbiter up until the final ...