Sara Errani, Timea Bacsinszky, Angelique Kerber and Agnieszka Radwanska advance in China
Wednesday 7 October 2015 17:06, UK
Sara Errani battled back from a set down to overcome Germany's 13th-seed Andrea Petkovic 3-6 6-3 6-2 to go through to the quarter-finals of the China Open
The diminutive Italian will next take on 12th-seed Timea Bacsinszky for a place in the Beijing semi-finals.
Switzerland's Bacsinszky edged a topsy-turvy match, which had 11 breaks in total, with seventh-seed Carla Suarez-Navarro of Spain, winning 6-4 4-6 7-5 to progress.
German Angelique Kerber broke eighth seed Caroline Wozniacki seven times to ease into the last eight with a 6-2 6-3 triumph over the Dane.
Fourth seed Agnieszka Radwanska will go through to the last eight after American Madison Keys retired injured with the Pole winning the match 6-3.
