Williams sisters one step closer to quarterfinal clash; Safina survives Bacsinszky battle

Dinara Safina and the Williams sisters made their way into the fourth round on Day 6, and the sisters are one round away from a quarterfinal clash.

Venus won her third round match easily to Alona Bondarenko in just four minutes short of an hour, 62 61.

"The Wimbledon win helped me change my mentality, to realize not everything had to be perfect all the time," said Williams, whose current 10-match Grand Slam winning streak includes seven wins at the All-England Club. "If I don't have a perfect practice I don't get really upset about the whole tournament. Now if I don't have a perfect practice, I know I can play. That helps me to relax, so I think the way I'm playing right now has to do with playing well at Wimbledon."

Next up for Venus is Agnieszka Radwanska, who won her match to Dominika Cibulkova 60 63.

Serena, the younger sister, won her match with the same score as Venus, to No. 30 seed Ai Sugiyama, 62 61.

"I have played her before and I've played her a lot in doubles, so I pretty much know her game," said Williams on Sugiyama, against whom she is now 4-0 lifetime. "Those players are good to play because you know what to expect and what not to expect. Now I'm just focusing on my next match."

Next up for Serena is Severine Bremond, who beat Tathiana Garbin, 75 36 64.

Other players winning third round matches on Saturday afternoon were No.16 seed Flavia Pennetta, who beat No.19 seed Nadia Petrova, 46 64 63; No.32 seed Amélie Mauresmo, who beat qualifier Julie Coin, the conqueror of top seed Ana Ivanovic, 64 64; and qualifier Anna-Lena Groenefeld, who upset No.17 seed Alizé Cornet, 64 75. Pennetta will play Mauresmo in the next round; Groenefeld will play No.6 seed Dinara Safina, who rallied past Timea Bacsinszky in the feature night match on Arthur Ashe, 36 75 62. Bacsinszky was up 63 54 before Safina won nine of the last 12 games of the match.