Zheng excited for quick return

China's Zheng Jie said she was brimming with confidence for the 2012 Olympics back at Wimbledon after an impressive performance on Center Court that almost got the better of Serena Williams.

Zheng (pictured) will represent her country at the All-England Club later this month and, if she maintains her form, will be a dangerous prospect in the draw.

The 28-year-old took the first set off four-time champion Williams, but lost a final set thriller in a 6-7 (5), 6-2, 9-7 defeat on Saturday.