Top-seeded Jankovic loses in fourth round

MELBOURNE, Australia - Top-seeded Jelena Jankovic was knocked out in the fourth round of the Australian Open and will have to search elsewhere for her first Grand Slam title.

Frenchwoman Marion Bartoli, the 2007 Wimbledon finalist, broke Jankovic's serve twice in the first set en route to a 6-1, 6-4 win Sunday and a place in the quarterfinals.

"I tried to not think about it for the whole match," Bartoli said of Jankovic's No. 1 ranking. "I think I just played amazingly today and I'm so glad to put on a good performance."

The 16th-seeded Bartoli had not been past the second round in seven previous trips to Melbourne Park.

On Saturday night, men's No. 1 Rafael Nadal ripped 53 winners in a 6-4, 6-2, 6-2 victory against Tommy Haas. Nadal kept his unforced errors to a frugal 8 - and to just 1 in the 43-minute second set.

"I played one of my best matches here at the Australian Open," said Nadal, who has improved by one round in each of his five trips to Australia. To continue that sequence, he'll have to make the final.

Andy Murray won 11 straight games during a 7-5, 6-0, 6-3 win over Austrian Jurgen Melzer. Fifth-seeded Jo-Wilfried Tsonga joined fellow Frenchmen Gael Monfils and No. 6 Gilles Simon in the fourth round. He next faces No. 9 James Blake, the second American to reach the final 16 after Andy Roddick.