updated 6:34 p.m. ET May 30, 2008

PARIS - Oracene Price, mother and coach to Venus and Serena Williams, stood near the steps to the locker room at the end of a long, rough day at the French Open.

First she watched eight-time major champion Serena lose a match that began a little after 11 a.m. Then she watched six-time major champion Venus lose a match that ended in near-darkness, shortly before 10 p.m. Both sisters were stunned in the third round Friday by journeywomen who never have been quarterfinalists, much less champions, at any Grand Slam tournament.

As Price consulted another daughter about the best way to leave the grounds, she paused for a moment, distracted by someone bounding up the stairs, two at a time. It was Flavia Pennetta, the Italian seeded 26th who beat Venus 7-5, 6-3, and was headed toward her parents for hugs and kisses and a congratulatory call from Grandma.

“Did you see the match? Did you see the match?” Pennetta shouted loudly enough to be heard back home in Brindisi, at the heel of Italy’s boot, without the help of a cell phone. “Don’t cry!”

For days leading to these matching upsets, the Williams clan spoke — presciently, it turns out — about how tough it can be to play against less-heralded opponents who want to make their mark by beating one sister or the other.

“They just have to learn how to do the rope-a-dope as they get older,” Price said after Serena’s 6-4, 6-4 loss to No. 27 Katarina Srebotnik of Slovenia.

It was clear from listening to Pennetta and Srebotnik that they were thinking exactly what the women they beat figured.

“Today, I woke up and, you know, it was just another opportunity. This is what you work so hard for — to be in third round where you play Serena or someone like that and you have really nothing to lose,” said Srebotnik, who managed to reach the fourth round at a major only once before in 35 tries.

“If you win a match like that, you gain a lot, so I just took my chances.”

Not only was there nary a Williams left in the French Open, there were no U.S. women left at all, because Bethanie Mattek was beaten 6-2, 3-6, 6-2 by No. 1 Maria Sharapova, whose 10 double-faults raised her total to 27 through two matches. It’s the first time in at least 40 years the United States didn’t put at least one woman into the fourth round at Roland Garros.

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Heading into Saturday there was a solitary American in Paris: Robby Ginepri, the last of 10 U.S. men in the original draw after Wayne Odesnik lost to No. 3 Novak Djokovic in straight sets. Ginepri plays Florent Serra of France in the third round.

Friday’s surprises also mean there will be a first-time French Open women’s champion. Serena, who beat Venus in the 2002 final, was the only past winner entered.

If Srebotnik befuddled Serena by repeatedly changing angles and speeds, Pennetta took a more unorthodox path to beating a Williams, hanging with Venus through long baseline exchanges. In the second set, as the light faded, Pennetta won seven of the 10 points that lasted 10 or more strokes.

Michel Spingler / AP Venus Williams lost serve six times and committed 29 unforced errors.

“I played a complete match in every way,” said Pennetta, who lost in the first or second round in 14 of her previous 20 Grand Slam appearances.

There are no lights at Roland Garros, and a player has the right to request that a match be suspended because of darkness. A match between No. 3 Jelena Jankovic and No. 28 Dominika Cibulkova played simultaneously on another show court was halted in the second set — before Pennetta-Williams finished — and will resume Saturday.

Asked why she did not request the chair umpire to stop play, Venus said: “Because I didn’t.”

Serena, meanwhile, went only 1-for-7 on break points, including 0-for-5 in the second set. She also lost 14 of the 21 points when she went to the net, thanks to some poor approach shots, shoddy volleying and four passing winners off Srebotnik’s racket.

“Once the ball was in the rally I kind of saw it big, and I could pick a spot,” Srebotnik said.

She repeatedly showed resolve, including while serving out the first set at 5-4.

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