Daniela Hantuchova beat Nadia Petrova en route to the 16s, where she led Venus Williams, 61 20, before falling.
Gisela Dulko's serve shone in the sunset during her third round match against Marion Bartoli.
Kim Clijsters had won the Sony Ericsson Open before and did not drop a set until the semis this time.
Justine Henin made a triumphant return to the Sony Ericsson Open, making it all the way to the semifinals.
In the match of the tournament, Kim Clijsters and Justine Henin met at the net after Clijsters' victory.
Victoria Azarenka extended her Miami winning streak to eight matches before running into Kim Clijsters.
Yanina Wickmayer made it all the way to the quarterfinals in Miami, falling to Marion Bartoli.
Venus Williams faced a huge test in the fourth round against Daniela Hantuchova but won. She was down, 61 20.
Caroline Wozniacki battled her way into the quarterfinals, where she fell to Justine Henin in a marathon.
Ana Ivanovic snapped her losing streak and would push Agnieszka Radwanska to two tight sets before falling.
Marion Bartoli beat Svetlana Kuznetsova, her seventh win in her last 11 duels versus the Top 5 at the time.
Marion Bartoli's two-fisted groundstrokes were on fire during her quarterfinal against Yanina Wickmayer.
Agnieszka Radwanska's incredible court craft took her to the quarters, where she fell to Venus Williams.
Svetlana Kuznetsova rode her No.1 seed into the fourth round before running into Marion Bartoli.
World No.1 doubles players Cara Black and Liezel Huber lost their opening match in a stunner.
Ashley Harkleroad became the latest mother-on-Tour, making her comeback after having her first child.
Melanie Oudin couldn't figure out the game of Vera Zvonareva, falling to the No.11 seed in the second round.
Agnes Szavay's big forehand was on but she came up short against Svetlana Kuznetsova in the third round.
Veterans Lisa Raymond and Rennae Stubbs talked strategy during the doubles competition in Miami.
Maria Kirilenko blazed through the first set, 6-1, before ultimately losing to Caroline Wozniacki, 16 61 64.