Former Wimbledon champion Elena Rybakina also secured a quarterfinal berth by defeating Britain's Heather Watson 6-4, 6-2.

LONDON, June 12 (Xinhua) -- China's Olympic champion Zheng Qinwen fought hard to reach the quarterfinals of the women's singles at the Queen's Club Championships on Thursday. The 22-year-old Zheng, ...

（伦敦综合电）中国头号种子郑钦文在新加坡时间星期五（6月13日）凌晨举行的女王俱乐部网球锦标赛女单16强赛中，以6比3、4比6、7比5险胜世界排名第42位的美国选手麦卡特尼·凯斯勒（McCartney Kessler），成功晋级八强。