The world's top two men tennis players, Roger Federer of Switzerland and Rafael Nadal of Spain, have reached the semifinals of the Wimbledon tennis championships in London. But women's world number-one Justine Henin of Belgium was an upset victim in her semifinal on Friday.

Twenty-two-year-old Marion Bartoli of France stunned Henin, rallying from a first set drubbing to win 1-6, 7-5, 6-1. In Saturday's final, the 18th-seeded Bartoli will face Venus Williams of the United States. Though she is seeded only 23rd, Williams reached her sixth final at the All England Club with a convincing 6-2, 6-4 triumph over sixth seed Ana Ivanovic of Serbia.

On the men's side, the top-seeded Federer needed four sets to get past Juan Carlos Ferrero of Spain, 7-6, 3-6, 6-1, 6-3. He will next face Richard Gasquet of France who rallied from two sets down to upset third seed Andy Roddick of the United States in five sets (4-6, 4-6, 7-6, 7-6, 8-6).

Rafael Nadal, the second seed, won in straight sets over Tomas Berdych of the Czech Republic (7-6, 6-4, 6-2).

Nadal's semifinal opponent Saturday will be fourth seed Novak Djokovic of Serbia, who survived a five-set marathon against 10th seed Marcos Baghdatis of Cyprus, 7-6, 7-6, 6-7, 4-6, 7-5. The five-hour match was the fourth longest in Wimbledon history.

Some information for this report was provided by AP.