The seventh seeded Russian beat the American ace in the quarter-finals of the Amelia Island championship.
The second seed beat Mary Pierce of France 6-3, 6-1 at the Amelia Island WTA championship in Florida.
Defending champion Serena Williams was knocked out of the Australian Open by Daniela Hantuchova
Images from the French Open women's final plsyed at the Roland Garros on Saturday.
Making her Grand Slam comeback in Paris following the birth of her daughter Alexis Olympia last September, Serena Williams will renew her fierce on-court rivalry with Maria Sharapova on Monday when they meet in a highly-anticipated fourth-round showdown at the French Open.
The fourth-seeded Belgian will meet compatriot Kim Clijsters in the women's French Open final.
Serena Williams can break Margaret Court's record of 24 Grand Slam singles despite being five short at an age when most players have retired, according to Martina Navratilova.
Venus and Serena Williams kept up their semi-final date with commanding victories over Vera Zvonareva and Anastasia Rodionova respectively at the WTA Tier II Bangalore Open on Friday. Venus won 6-4, 6-3, while Serena was through at 6-1, 6-4.
Former champions Venus and Serena Williams pulled out of the women's doubles at Wimbledon.
Frenchman Adrian Mannarino also quit at two sets apiece against eight-times champion Roger Federer after sliding over on Centre Court and injuring his knee.
Serena 'out of line' but both sides share blame says King
The mother-to-be showed off her baby bump in a flowing green gown as she entered with fianc Alexis Ohanian.
Serena Williams denied that she already knows the sex of her unborn baby, a day after big sister Venus appeared to hint that the former world number one is expecting a girl.
The seven-times grand slam singles champion was ranked 139th in the world at the entry deadline for the US Open.
A round-up of the fourth day's play at the French Open.
As Russian Maria Sharapova and American Serena Williams get ready to slug it out in their big-ticket semi-final, records and history tells us who has had the upper hand.
Defending champion, Serena Williams has accused the Wimbledon organisers of favouring male players at the tournament.
The ex-world number one is confident she can again become a dominating force on the WTA Tour.
The former champions lit up the courts with their amazing tennis after a wet start to the fifth day at the Australian Open.
Serena Williams offers support to Naomi Osaka.
Defeat is never an option for Serena Williams, but the World No 1 came close to an embarrassing second-round exit at the French Open after an 'unprofessional' display on Thursday.
The former world No 1 has her sights set on the upcoming Australian Open as her comeback platform, and she's already deep into training following what she playfully terms 'a cool little intermission'.
It was back in 2003 that Serena Williams first stamped her name on Australian Open history, the then 21-year-old taking down sister Venus to bring home her first title on the blue courts of Melbourne Park.
Serena Williams, brimming with confidence and self-belief with every match she plays, stormed into the semi-finals of the US Open on Wednesday with a 6-1, 6-3 demolition of Ana Ivanovic.
Despite dominating the year by winning three Grand Slam titles in 2015, World No.1 Serena Williams believes she is playing better this year. Williams is once again on the cusp of a historic achievement. Only seventh seed Angelique Kerber stands in the way of the 34-year-old landing a 22nd singles major trophy to draw level with Steffi Graf in the history books. "I kind of relish every win and every final and every match now. I think, maybe in the past I didn't as much. I was just like going through the motions," Williams said. "Even though I was super excited, I just feel like now it's even more exciting." The world No.1 holds a 5-1 lead in head-to-head matches with the powerful leftie but Williams remains wary of the threat presented by Kerber.
An injury-hampered world number one Serena Williams suffered a shock 6-4, 3-6, 6-1 defeat to Klara Zakopalova of the Czech Republic in the first round of the Andalucia Tennis Championships on Wednesday.
Serena Williams saved three match points and Novak Djokovic revived his stuttering Australian Open preparations in fierce heat at the Sydney International on Wednesday.
Serena and Venus Williams, three-time women's doubles Olympic champions, crashed out in the first round at the Rio Games on Sunday in one of the biggest upsets so far in women's tennis. The Williams sisters were beaten by the Czech Republic pair of Barbora Strycova and Lucie Safarova 3-6, 4-6.
Australia's Sam Stosur tamed her own pounding heart and repelled everything -- both good and bad -- that Serena Williams hurled at her to win the U.S. Open crown and her first grand slam singles title on Sunday.
Serena Williams took another emphatic step in defense of her U.S. Open title by crushing Galina Voskoboeva of Kazakhstan 6-3, 6-0 on Thursday to reach the third round of the year's final Grand Slam.
Former world number one Serena Williams continued her return to form with a convincing 6-3, 7-6 victory over Czech Lucie Hradecka in the first round of the Cincinnati Open Tuesday but showed signs of fatigue in her second set.
World No 1 Serena Williams breezed past older sister Venus 6-1, 6-2 in their first meeting since 2009 in the semi-finals of the Family Circle Cup in Charleston, South Carolina on Saturday.
The showdown will see world number one Serena Williams try to equal Steffi Graf's professional era record of 22 Grand Slam singles titles, while Angelique Kerber will seek to become the first German woman to lift the Wimbledon singles crown since her idol Graf 20 years ago.
Serena Williams is a five-times Wimbledon champion but the American has surprisingly declared that she has "never really liked grass".
The Met Gala was also the red carpet for a bunch of lovely-looking pregnant celebs who proudly showed off their baby bumps.
Serena Williams reached the quarter-finals of the French Open on Monday after a clinical display saw he beat Canadian Aleksandra Wozniak 6-1, 6-2. The 2002 champion, at 27 the oldest woman left in the draw, will face seventh seed Svetlana Kuznetsova for a place in the last four. The Russian beat Poland's Agnieszka Radwanska 6-4, 1-6, 6-1.
Holder Maria Sharapova ended the encouraging run of Venus Williams to reach the semi-finals of the Italian Open on Friday, but Serena Williams enjoyed an easy passage through to the last four.
Defending champion Serena Williams beat China's Li Na 6-0, 6-3 on Friday to reach her second consecutive US Open final.
Naomi Osaka dons tutu 'super suit' in triumphant US Open return.