Top seed Maria Sharapova was stretched by Serbia's Ana Ivanovic before she claimed a 7-6 7-5 win to reach the semi-finals of the Linz Open on Friday.
Top seed Kim Clijsters edged past Jelena Jankovic, while Maria Sharapova beat fellow Russian Vera Zvonareva at the Acura Classic.
The Belgian battled past Jelena Jankovic 5-7, 6-2, 6-2 in the second round of the Bank of the West Classic
The Indian ace was beaten by the top seeded Swiss girl 6-7(7), 5-7 in the quarter-finals.
The victory gave the unseeded American a place in the Birmingham Classic final against Russian Vera Zvonareva.
The Indian ace reached a career-high 31st in the latest WTA Tour rankings despite being out of action for the last three weeks.
Sania Mirza has jumped six places in the latest WTA rankings after her semi-final appearance at the Japan Open.
The Indian ace was beaten in straight sets by Japan's Akiko Morigami.
She beat Kristina Brandi 7-6, 7-5 in the second round of the Western and Southern Financial Group Women's Open.
Amelie Mauresmo will play Russian Vera Zvonareva in the semi-final of the Rome Masters
Elena Dementieva made a confident start to her claycourt campaign as she beat compatriot Alina Jidkova 6-4, 6-4
Unheralded Igor Kunitsyn upset former world number one Marat Safin 7-6, 6-7, 6-3 in an all-Russian Kremlin Cup final to clinch his maiden title.
The French Open champion outlasted fellow Russian Vera Zvonareva in a thriller at the Acura Classic.
Serena Williams won her third title of the year by beating Russian Vera Zvonareva 6-4, 3-6, 6-3 in the Family Circle Cup final.
Mary Pierce edged Vera Zvonareva 6-4, 3-6, 6-3 to send France into the Fed Cup final against the United States.
The Belgian top seeds remained on course to meet in the final of the Swisscom Challenge.
Russian teenager Vera Zvonareva played the match of her life to beat third seed Venus Williams in the fourth round of the French Open.
Vera Zvonareva of Russia beat India's Sania Mirza 7-5, 6-1 to win the Pattaya Open on Sunday.
Second seed Daniil Medvedev will launch his bid to win his first major title against veteran Frenchman Richard Gasquet.
World number two Rafael Nadal dropped a set at the Barcelona Open for the first time in four years before advancing to the last 16, beating Argentine Leonardo Mayer 6-7(7), 6-4, 6-2 on Wednesday.
In the men's draw, Belgian Xavier Malisse has pulled out, also with a wrist injury, while Spaniard Alberto Martin has ruled himself out because of an elbow injury.
China's No 1 Li Na has ruled herself out of playing at the 2016 Rio Olympics, the 31-year-old said at the Australian Open on Friday.
Following is a list of American Serena Williams' 22 grand slam singles titles as she equalled Steffi Graf's professional era record with victory at Wimbledon on Saturday
Novak Djokovic took a first unsteady step toward completing the calendar-year Grand Slam on Tuesday as the Serb laboured into the second round of the US Open with a 6-1, 6-7(5), 6-2, 6-1 win over dashing Danish teenager Holger Rune.
Here is a Factbox on Spaniard Garbine Muguruza, who beat American Venus Williams 7-5, 6-0 to win her first Wimbledon singles title on Saturday:
Serena Williams was sent spinning out of the Western and Southern Open by Maria Sakkari on Tuesday after the Greek rallied from a set down to beat the 23-times Grand Slam champion 5-7, 7-6(5), 6-1 and reach the quarter-finals.
Spain's Garbine Muguruza beat Serena Williams 7-5, 6-4 to win the French Open on Saturday and claim her first Grand Sam title. Take a look at the career of the 22-year-old.
Former Wimbledon runner-up Eugenie Bouchard successfully negotiated the qualifying draw on Thursday, beating Colombian Mariana Duque-Marino 6-3, 6-2 to secure a spot in next week's main draw.
A factor that could work in the Belgian's favour is the unprecedented nature of this year's Grand Slam.
At one stage Yuki was a break up, serving for the opening set but lost his serve and eventually the set. After drawing parity, Yuki twice lost his serve to fall behind 0-3 in the decisive set and never recovered.
Here is a list of US Open women's singles champions since the open era began in 1968:
Venus Williams's encouraging form at the Australian Open has given younger sister Serena cause to look over her shoulder after the siblings eased into the third round with straight-sets wins at Melbourne Park on Thursday.
Milestones in the progress of Chinese women's tennis after Li Na, the first Asian to win Grand Slam singles titles, announced her retirement from the sport on Friday.
Summary of sports events and persons who made news on Saturday
Following is a list of Serena Williams' 23 grand slam singles titles after the American surpassed Steffi Graf's professional era record with victory at the Australian Open on Saturday:
The tension mounted and temperatures soared at the U.S. Open as top seed Novak Djokovic and Andy Murray set up a sensational quarter-final, and Serena Williams made a 2014 grand slam breakthrough.
Images from the Australian Open matches played on Tuesday.