World number five Zheng, who won gold at the Paris Olympics last year and reached the final of the season-ending WTA Finals, ...

Last year’s beaten finalist Zheng Qinwen blamed the lack of a warm-up event and a serve clock violation for her shock ...

While Zheng, who was stunned 7-6 (3) 6-3 by Laura Siegemund, was the first top-10 women’s seed to exit, sixth seed Casper ...