London, Jul 2 (IANS): Sabine Lisicki pulled off another huge surprise at Wimbledon Monday when the German 23rd seed clinched a 6-2, 1-6, 6-4 victory over World No.1 Serena Williams in the fourth round.
Lisicki, a Wimbledon semi-finalist in 2011, will play Estonia's Kaia Kanepi for a place in the last four, reports Xinhua.
Second seed Victoria Azarenka and world number three Maria Sharapova were knocked out of the women's tournament, while seven-time Wimbledon champion Roger Federer and Rafael Nadal suffered shock exits from the men's draw in the first week.