Lisicki knocks out top seed Williams

World number one Serena Williams saw her winning streak and hopes of a sixth Wimbledon title end with a shock defeat by Germany's Sabine Lisicki. Lisicki, the 23rd seed, won the fourth-round encounter 6-2 1-6 6-4 on Centre Court. Williams joins leading names Maria Sharapova, Victoria Azarenka, Roger Federer and Rafael Nadal in making an early exit at what has been a tournament of stunning upsets. It was only the third defeat in the last year for Williams, and ends her career-best winning r of 34 matches, but she insisted afterwards: "It's not a shock. Please turn on JavaScript. Media requires JavaScript to play. //