When Williams dumped a drop shot into the net to again lose serve and fall behind 1-0 in the second set, she slammed her racket.

"I was just making all the errors and just playing like a maniac," Williams said.

She won the next six points, breaking back with the help of two double faults by Henin to take a 2-1 lead, but it didn't last long.

Williams lost her next service game, largely because of three backhand errors, and Henin calmly won eight of the final nine points to close out the victory.

"I managed to hold my serve in the important moments," Henin said. "I managed to impose my game."

She improved to 14-1 in Grand Slam quarterfinals and faces a potentially tough semifinal against Jankovic, who is 44-10 this year and 23-3 on clay.

But two of those clay-court losses came against Henin, who is 5-0 against Jankovic.

"I will try to find a way somehow to win," Jankovic said. "I think I can do it ... because I feel that I'm really physically very fit, and I feel like I move so well on the clay."

Sharapova had lost her previous two quarterfinal matches at Roland Garros. Nursing a sore shoulder and playing on her worst surface, the two-time Grand Slam champion nonetheless managed a breakthrough against fellow Russian Chakvetadze.

"I wouldn't say I'm surprised," Sharapova said. "I didn't come off the court and go, `Wow, I'm in the semifinals.' That wasn't really the feeling that I had.

【Henin extends win streak at French Open】相关文章：

★ 娱乐英语资讯：Brosnan cleared in scuffle with photographer

★ Rain hits French Open, interrupting most matches

★ Aniston and Vaughn rekindling their romance?

★ LA DA: Lohan wont be charged with theft

★ Ashlee Simpsons plastic surgery a personal choice

★ Jolie urges U.S. to boost aid to orphans

★ Spears cut ties with Hilton over image fears

★ Seedorf shows his emotions after reaching another final

★ 娱乐英语资讯：Were Brangelinas twins the result of IVF?

★ Beckham wins Sport Industry award