BBC Sporttennis

Fifth seed Serena Williams is first out on Suzanne Lenglen at the start of day six but loses the first set to Katarina Srebotnik

Srebotnik keeps up the pressure on Williams in the second set and seals a famous victory over the 2002 champion

Second seed Ana Ivanovic also has problems in the first set against Danish teenager Caroline Wozniacki

But Ivanovic wraps up the first set 6-4 and runs away with the second to book her place in the fourth round

World number one as Maria Sharapova is next out on Court Philippe Chatrier looking to finish off her match against Bethanie Mattek

Sharapova took the first set on Thursday night before darkness fell but Mattek surprisingly hits back to take the second on Friday

Sharapova has problems with her serve but she still manages to see off the American qualifier 6-2 3-6 6-2

Defending champion Rafael Nadal is back in action for the second successive day, taking on Finland's Jarkko Nieminen

Nadal shows few signs of fatigue, however, dropping only five games as he roars to an easy - and speedy - victory

British number one Andy Murray is up against Spanish clay expert Nicolas Almagro with a place in the last 16 at stake

Murray suffers an early setback, with Almagro breaking his serve early on and taking the first set

Murray responds well, winning the second set on a tie-break and taking the early initiative in the third set too

Murray's frustration is evident as Almagro wins seven straight games to clinch the third set and move close to victory

Murray battles on but cannot cope with the Spaniard's huge serve and it is Almagro who goes through to the fourth round

Third seed Novak Djokovic takes a tumble during the first set of his third round match against American qualifier Wayne Odesnik

But the Australian Open champion gets back to his feet and wastes little time in brushing aside Odesnik to reach the last 16

Last on Court Philippe Chatrier is Jelena Jankovic who leads Dominika Cibulkova 7-5 4-2 when bad light ends play for the day

But there is time for Venus Williams to join sister Serena in going out in Paris as she loses 7-5 6-3 to Flavia Pennetta