Third-seeded Serb Jelena Jankovic beat the defending champion in straighht sets in the quarter-finals of the Australian Open.
Justine Henin beat Italian Mara Santangelo 6-2, 6-1 in the quarterfinals of the Warsaw Cup.
Serb Jelena Jankovic has rediscovered her form in time for the U.S. Open, while compatriot and fellow former world number one Ana Ivanovic is still looking to turn her season round.
Roger Federer should concentrate on his own career rather than criticising others, Serb Jelena Jankovic said on Tuesday after being irked by the Swiss master's unflattering verdict on her number one world ranking last year. Last month, former world number one Federer hit out at the way the WTA rankings were calculated, saying a player who has never won a Grand Slam should not be granted the number one spot.
She survived a ferocious fightback from China's Li Na on Thursday to book her place in the Sydney International final against in-form Serb Jelena Jankovic.
Unseeded Venus Williams marched into the Family Circle Cup semi-finals by beating Spain's Anabel Medina Garrigues 6-4 7-5 on Friday.
Although they registered contrasting wins, Serbian tennis stars Novak Djokovic and Jelena Jankovic marked a good day for Serbs at the BNP Paribas Open in Indian Wells on Tuesday.
One of Serbia's three rising starts, along with Novak Djokovic and Ana Ivanovic, Jelena Jankovic has it in her to win a Grand Slam
Super Serbs Ana Ivanovic, Jelena Jankovic and Novak Djokovic locked in their second round Australian Open spots on Monday as Andy Roddick routed a sacrificial Swede on Day One of the year's first grand slam.
The Serb saved three match points in a 2-6, 6-2, 12-10 win over Austrian Tamira Paszek, a marathon battle lasting three hours 10 minutes.
Jelena Jankovic made it a Serbian win double in Asia on Sunday as she fought back from a set down to beat Germany's Angelique Kerber to take the Hong Kong Open title.
Serbians Jelena Jankovic and Ana Ivanovic registered easy victories to advance to the fourth round of the Pacific Life Open. Third-seeded Jankovic shrugged off gusting winds to sweep aside Ai Sugiyama of Japan 6-1, 6-1, while top seed Ana Ivanovic, the world number two, also progressed with great ease, dispatching Italy's Tathiana Garbin 6-3, 6-0.
Jelena Jankovic continued her impressive preparation for the French Open when she beat world number three Svetlana Kuznetsova 7-5 6-1 in the final of the Italian Open on Sunday.
Top-seed Jelena Jankovic and second seed Caroline Wozniacki suffered surprise third-round exits in the Cincinnati Open on Thursday.
A rejuvenated Jelena Jankovic upset world number one Dinara Safina 6-4, 6-2 to win the Cincinnati Open on Sunday. The fifth-seeded Serb took advantage of an error-strewn display from the Russian to clinch her second title of the year.
World number one Ana Ivanovic battled her way into the third round of the Montreal Cup to keep her nose in front in the fight for the top ranking on Wednesday. Number three Maria Sharapova, however, will take no further part after withdrawing from the tournament with a shoulder injury following her win over Poland's Marta Domachowska.
Third seed Jelena Jankovic had to work very hard on Friday to quell the challenge of Czech Lucie Safarova 5-7 7-6 6-2 and reach the fourth round at Wimbledon.
Svetlana Kuznetsova reached the semi-finals of the Dubai Championships on Thursday after holding off a strong second set challenge to beat France's Amelie Mauresmo 6-1, 7-6.
Jelena Jankovic's bid for a fourth straight title ended on Thursday when the world number one lost 5-7, 6-3, 6-3 to unseeded Italian Flavia Pennetta in the second round of the Zurich Open. The Serb was playing her opening match of the week after receiving a first-round bye but showed little sign of having benefited from her brief rest since winning in Moscow.
Unseeded Thai Tamarine Tanasugarn stunned second seed Jelena Jankovic of Serbia 6-3, 6-2 at Wimbledon.
Top seed Caroline Wozniacki held off a spirited fightback by Frenchwoman Marion Bartoli to win her 14th WTA title with a 6-1, 2-6, 6-3 victory in the Indian Wells final on Sunday.
Top seed Caroline Wozniacki barely raised a sweat as she pummelled American wildcard Sloane Stephens 6-3, 6-2 in the second round of the Indian Wells WTA tournament on Saturday.
With a heavy rain expected to hit Flushing Meadows later in the day, Serb Jankovic relied on her trademark dogged retrieving to beat Russian Elena Dementieva 6-4, 6-4 before the muscular Williams swept away Dinara Safina 6-3, 6-2 in the women's singles semi-finals at the US Open.
Jelena Jankovic was upset 7-5, 6-2 by Slovakia's Dominika Cibulkova in the quarter-finals of the Montreal Cup on Friday.
Sania Mirza dropped 10 places to 60 while Somdev Devvarman rose to 320 in the rankings list released on Monday.
Williams surrendered her Wimbledon crown last July when she lost to the 22-year-old Serb in the third round.
Unseeded Spaniard Maria Jose Martinez Sanchez produced a major surprise by beating world number seven Jelena Jankovic 7-6, 7-5 in the Italian Open final on Saturday.
The Russian swept aside Danish teenager Caroline Wozniacki to set up a clash with Polish teenager Agnieszka Radwanska.
Fifth seed Maria Sharapova crushed Jelena Jankovic, while Ana Ivanovic recovered from a terrible start to beat Daniela Hantuchova in the Australian Open semi-finals.
Justine Henin qualified for the WTA Championships semi-finals with a 6-2, 6-2 win over Jelena Jankovic.
The Belgian was joined by Svetlana Kuznetsova, Jelena Jankovic and Tatiana Golovin in the semi-finals of the Stuttgart Open.
The world number one beat China's Peng Shuai 7-5, 6-2 in the third round.
Jelena Jankovic teamed up with men's world number one Djokovic at his tennis complex in Serbia's capital and beat the duo of Serbia's Davis Cup captain Nenad Zimonjic and 19-year-old prospect Olga Danilovic 7-6 in a mixed doubles contest.
The third seeded Russian rallied to beat the American to reach the semi-finals of the Warsaw Cup.
Justine Henin knocked out Swiss Patty Schnyder 3-6, 6-4, 7-5 to reach the Qatar Open semi-finals.
Jelena Jankovic won her second tour title of the year after thrashing fourth seed Svetlana Kuznetsova of Russia 6-3, 6-2 at the China Open.
Top seed Jelena Jankovic was bundled out of the Pan Pacific Open in a 2-6, 7-5, 7-5 defeat by Russian Svetlana Kuznetsova in Friday's quarter-finals. The defeat ended the Serb's hopes of recapturing the world number one ranking from Serena Williams this week following her recent loss to the American in US Open final.
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 Jelena Jankovic and Venus Williams expressed disappointment with Sania Mirza's withdrawal from the Tier II Bangalore Open.
Jelena Jankovic won a fierce scrap with Venus Williams 6-7, 7-5, 6-2 on Saturday to set up a Stuttgart Grand Prix final against Nadia Petrova. Unseeded Russian Petrova's 6-4, 6-4 victory over Victoria Azarenka of Belarus in the opening semi-final was straightforward by comparison.