Justine Henin and Venus Williams powered into the Sony Ericsson quarter-finals in Miami, but Lindsay Davenport was dumped out.
Henin and Williams through, Davenport goes out.
Justine Henin and Venus Williams powered into the Sony Ericsson quarter-finals in Miami, but Lindsay Davenport was dumped out by Dinara Safina.
World number on Henin hit eight aces against Russian Elena Vesnina during her comprehensive 6-2 6-2 success in the fourth round in Miami.
Number six seed Williams is a three-time winner at Key Biscayne and she had little trouble making the last eight once again.
Williams defeated Caroline Wozniacki 6-3 6-3 and lost only three points to the 17-year-old Dane as she looks for a first title of the year.
Although Wozniacki has won 14 matches this year and risen to 43 in the rankings, she was no match for Williams, who hit with 23 winners and only 18 errors.
Aggressive
"I played some good tennis and aggressive when I needed to, and a lot of really good service games," Williams said.
"I definitely feel like I'm playing well.
"I'm always trying to take it to another level, regardless. If I'm playing on cloud nine, I'm trying to get to cloud 10, and actually cloud 11."
Lindsay Davenport suffered a setback as she looks to return to the top of the sport as she was beaten 6-3 6-4 by Dinara Safina.
After 11 months away from tennis after giving birth to her first child last season, Davenport came back in September and has already won tournaments in Auckland and Memphis.
32nd seed Davenport could not find her best form in Miami though and was outplayed all the way by Russian Safina, with 34 unforced errors not helping the American.
"That's the thing with tennis," Davenport said. "Every day you start over. But hopefully more positives than negatives come from this tournament.
"She did everything better than I did. I came up against a player today that was real intense and real eager to win."
Russian number three seed Svetlana Kuznetsova booked her place in the quarts thanks to a 7-6 6-3 success over Israel's Shahar Peer.