
..Andy Murray has reached the last 16 men at Wimbledon, while No 2 seed Jelena Jankovic just managed to avoid another upset in the women's singles
Wimbledon - Britain's sole survivor Andy Murray reached the last 16 at Wimbledon on Saturday after surviving his toughest test yet against German Tommy Haas.
The 21-year-old Scot, seeded 12, came through 6-4 6-7 6-3 6-2 to move into the second week where he will face flamboyant Frenchman Richard Gasquet for a place in his first grand slam quarter-final.
Murray played sublime tennis to lead by a set and a break before Haas pounced on a temporarily lapse to level the match on a tiebreak.
Haas missed an easy volley on a break point at 1-1 in the third set when Murray was wobbling and he was made to pay in the next game when he dropped serve.
Murray seized control again and Haas hardly got a look in as the home favourite surged to victory with some dazzling tennis.
There was no slow start for Venus Williams this time.
After struggling in tight first sets in her opening two matches, the defending champion moved out quickly on Saturday and raised her game when she needed it in the second to beat Spanish qualifier Maria Jose Martinez Sanchez 6-1 7-5 and reach the fourth round at Wimbledon.
Williams served out the match at love, finishing with a 127mph delivery - the fastest recorded by a woman at Wimbledon _-for her 11th ace.
Barely tested "Yeah, 127 is a good way to end it," she said.
The four-time champion was barely tested in the first set by the 101st-ranked left-hander. But Williams was pushed to the limit in the second when Martinez Sanchez switched to an effective serve-and-volley game.
"I was very pleased with the performance," the seventh-seeded Williams said. "Things got close in the second set. She was really playing well, and I had to come up with something more than she was giving."
Also advancing to the round of 16 was No 2-seeded Jelena Jankovic, who rallied after dropping the first set and overcame a knee injury to down 17-year-old Danish player Caroline Wozniacki 2-6 6-4 6-2 on Centre Court.
Jankovic, who had her left knee heavily strapped and hobbled through the final set, said she would have an MRI scan to assess the injury and hopes to be fit to face Tamarine Tanasugarn in the fourth round on Monday.
"It's very sore now," she said. "I hope for the best so that I will be able to play my next match."
The 25-year-old Martinez Sanchez had never won a Grand Slam singles match until this tournament and looked out of her depth in the first set against six-time major winner Williams. But she scored repeatedly with serve-and-volley winners and angled drop shots and drop volleys in the second set.
"It was a great strategy," Williams said. "In the first set it wasn't working for her from the baseline. I was impressed with the way she changed strategy and made it really competitive in the second."
Six double faults. The Spaniard rallied from 3-1 down to go ahead 5-4 on serve. But she double-faulted on break point to give Williams a 6-5 lead. Williams finished with 33 winners, as well as 10 unforced errors and six double faults.
She had played erratically in her first two matches against modest British opponents on Centre Court, winning the first set in a tiebreaker against Naomi Cavaday and pressed to 7-5 in the first set against Anne Keothavong.
She will next face 18-year-old Russian Alisa Kleybanova, who is into the second week in her Wimbledon debut after beating Ai Sugiyama 6-4 6-4.
Jankovic is the highest-ranked player left in the women's draw after the upsets of No 1 Ana Ivanovic and No 3 Maria Sharapova. For awhile Saturday, she looked in danger of joining them to make it the first time in the Open era that the top three seeded women failed to make the fourth round at a Grand Slam.
"I was thinking maybe I'm the next one," she said.
But Jankovic bounced back to take the second set, then took an injury timeout for treatment on her left knee, which she strained when she slipped while lunging for a shot in the first set.
"I continued to play and it was getting worse and worse," she said.
Took a risk Jankovic limped through the third set, but still dropped only two games to close out the match as Wozniacki committed unforced errors on key points. Jankovic complained that the leg strapping was too tight and had the trainer remove it after the fifth game.
"The physio said I probably strained it," Jankovic said. "She taped it but I couldn't move it - I'm not used to it. I took a risk to play without the tape, which the physio was not happy about, but I had to do what I had to do."
Other women advancing to the round of 16 Saturday were fifth-seeded Elena Dementieva, No 21 Nadia Petrova and 154th-ranked Alla Kudryavtseva, who followed her upset of former champion Marion Sharapova by beating China's Peng Shuai 6-3 1-6 6-4.
Men's winners included No 8 Richard Gasquet, Janko Tipsarevic, Arnaud Clement and Rainer Schuettler, the oldest player left in the draw at age 32.
The tournament has been jolted by a series of early-round upsets that have decimated the seeding lists.
Six of the top-10 seeded men have been knocked out so far before the fourth round: No 3 Novak Djokovic, No 4 Nikolay Davydenko, No 5 Ferrer, No 6 Andy Roddick, No 7 David Nalbandian and No 9 James Blake.
Ivanovic's loss on Friday to 133rd-ranked Zheng Jie of China means two of the top three seeded women are already gone. Sharapova, the 2004 champion, was bounced out on Thursday by Kudryavtseva.