Meanwhile, Roger Federer set his sights on two gold medals after taking the express route into the third round of the Olympics with a 6-2, 6-2 victory over France’s Julien Benneteau.

Li Na

World number one Victoria Azarenka recovered from a second-set lapse to reach the London Olympics second round 6-1, 3-6, 6-1 against Romania’s Irina-Camelia Begu.