By Piers Newbery
BBC Sport at Wimbledon
France's Marion Bartoli caused a major Wimbledon upset by defeating third seed Jelena Jankovic in the fourth round.
Jankovic reached the semis at last month's French Open
Not many had the Court One match down for an upset, but 18th seed Bartoli held her nerve to win 3-6 7-5 6-3.
Jankovic has been the form player of 2007 but faltered in the final set, dropping serve three times.
Ana Ivanovic and Svetlana Kuznetsova won, while Venus Williams and Maria Sharapova managed just three points before the day's fifth rain break.
Bartoli, who now faces 31st seed Michaella Krajicek in the quarter-finals, said: "I think at the end I was a little physically stronger than her, she didn't know really what tactic to play against me out there."
You have to win when you're not playing so well, and that was the case today
She added: "It's not a big surprise for me - I'm a top-20 player - but I haven't won Wimbledon. It was a great match overall, I played great, I was happy but not over happy.
"That's why I'm working these 16 years, to be on this big stage and win against big players."
Ivanovic was another in-form seed in trouble as she battled through four rain breaks, the last of which came with her serving for the match against Nadia Petrova on Court Two.
The Serbian sixth seed eventually won 6-1 2-6 6-4 and will face Nicole Vaidisova in the last eight.
"We had to stop and when I came back I lost a bit of concentration," said Ivanovic. "I felt a bit empty and lost my fighting spirit but in the third set I tried to fight through it.
"My shots weren't working as well today but you have to win when you're not playing so well, and that was the case today.
"Mentally it was very tough, with lots of stops and ups and down in my game. I had to fight for every point and I hope to have the chance to play better tomorrow."
Fifth seed Kuznetsova was the first player through on day eight with a comfortable 6-3 6-2 win over 16-year-old Austrian Tamira Paszek.