Fifth seed Serena Williams reached the Family Circle Cup final by beating French teenager Alize Cornet 7-5 6-3 on Saturday. The 26-year-old next faces ninth seed Vera Zvonareva, who upset fellow-Russian Elena Dementieva, the fourth seed, 6-3, 6-7, 6-3 in a wildly fluctuating semi-final.
A shoulder injury forced her to withdraw from a semi-final with Justine Henin-Hardenne.
Belgium will meet the United States in the Fed Cup semi-finals after Kim Clijsters and Justine Henin-Hardenne beat holders Russia
Second seed Jelena Jankovic outlasted Victoria Azarenka 6-4, 6-7, 6-2 to reach the semi-finals of the Los Angeles Classic on Friday.
Third seed Jelena Jankovic continued her good form on clay when she swept aside former French Open finalist Elena Dementieva 6-2 6-1 to reach the semi-finals of the Italian Open on Friday.
Maria Sharapova retired during her Pan Pacific Open semi-final against Ana Ivanovic due to a hamstring injury.
Andy Murray maintained his hot start to the year as he led Britain into the final of the Hopman Cup with a 2-1 victory over Russia on Friday. The Scot put on a masterful display to crush Igor Andreev 6-1, 6-0 after Murray's teammate Laura Robson had been beaten 6-4, 6-0 by Elena Dementieva. Murray then joined his 15-year-old partner to beat the Russians 6-4, 6-7, 10-6 in the deciding mixed doubles.
The Russian overcame a groin injury to reach her first Kremlin Cup final beating Czech teenager Nicole Vaidisova.
The Wimbledon champion beat Kristina Brandi of Puerto Rico 6-1, 6-4 at the $1.3 million Montreal Cup.
Sixth seeded Svetlana Kuznetsova was beaten by Serbian 19th seed Jelena Jankovic in the fourth round of the US Open.
A fatigued Sharapova lost to fellow-Russian Elena Dementieva while Williams was beaten Serbian Jelena Jankovic in the semi-finals of the Los Angeles Open.
Second seed Maria Sharapova crushed defending champion Mary Pierce 6-2 6-3, setting up a last four clash with Patty Schnyder of Switzerland, who beat number four Elena Dementieva 6-4 6-3.
The Russian will meet Patty Schnyder, who beat number four Elena Dementieva, in the semi-finals of the Acura Classic.
The Indian ace beat Katarina Srebotnik 6-3, 7-6 to set up a third round clash with Elena Dementieva.
Justine Henin-Hardenne battled her way to a 6-7, 6-4, 6-3 victory over Russia's Nadia Petrova to leave the countries level at 1-1 in Fed Cup
The Belgian will face Elena Dementieva while the Swiss ace will take on Paradorn Srichaphan in ther semi-finals of the Pacific Life Open.
The Indian ace fought off a strong challenge from qualifier Bethanie Mattek at the Pacific Life Open.
Svetlana Kuznetsova overcame a dogged Shinobu Asagoe 6-1, 5-7, 7-5 on Sunday.
"There was a misunderstanding with the translation because I didn't say that I'm not going to play at all," said Myskina.
Lindsay Davenport and Jennifer Capriati will clash for a place in the final of the Bausch and Lomb championships.
The pair beat 14th seeds Elena Dementieva of Russia and Italian Flavia Pennetta in the final at the US Open.
Russia closed in on a Fed Cup semi-final victory over the United States after Anastasia Myskina beat Venus Williams.
The Belgian defeated Russian Elena Dementieva 7-5, 6-4 to win the Family Circle Cup for a second time.
While Wimbledon champion Maria Sharapova was buried 6-0, 6-0 by Lindsay Davenport in the semi-finals.
The top-seeded Australian meets qualifier Ivo Minar, who beat fellow Czech Radek Stepanek 6-1, 6-2 to reach his first ATP final.
List of US Open women's singles champions, since 1912.
Svetlana Kuznetsova powered to her first Grand Slam title by beating fellow Russian Elena Dementieva 6-3, 7-5 in the final of the U.S. Open.