Czech Lucie Safarova took the final qualifying spot for the end-of-season WTA Finals after Spain's Carla Suarez Navarro was knocked out of the Kremlin Cup quarter-finals on Thursday.
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.
Czech Lucie Safarova stunned world number five Svetlana Kuznetsova of Russia 6-3, 6-4 to set up a semi-final clash with Belgium's Justine Henin at the Paris Open on Friday.
Maria Sharapova overcame more problems with her serve to beat Czech Lucie Safarova 6-2, 7-6 and reach the quarter-finals of the Pan Pacific Open on Wednesday.
Third seed Venus Williams found herself on the brink of defeat before rediscovering her touch to beat Czech Lucie Safarova 6-7, 6-2, 7-5 and reach the third round of the French Open on Thursday. The American, who saved a match-point in the 10th game of the decider, will next face Hungary's Agnes Szavay, seeded 29th.
Left-hander Safarova, the World No 17, broke Jankovic's opening serve before winning 6-1, 6-1 in front of a 14,000 capacity crowd at Prague's O2 Arena. She had won only one of their previous six encounters.
Bethanie Mattek-Sands of the US and Czech Lucie Safarova fought back from the brink of defeat to steal the US Open women's doubles title, 2-6, 7-6(5), 6-4 over the French top seed partnership of Caroline Garcia and Kristina Mladenovic on Sunday.
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.
Garbine Muguruza made an imposing start to the WTA Finals by confidently swotting aside Czech Lucie Safarova 6-3, 7-6 (4) in their White Group opener on Monday.
The 13th seeded Czech proved too strong for Serb, who lifted the Suzanne Lenglen Cup in 2008, winning 7-5, 6-4.
Lucie Safarova made sure she left Roland Garros with at least one winner's trophy after the Czech left-hander and Bethanie Mattek-Sands won the women's doubles title on Sunday.
Bethanie Mattek-Sands and her partner Lucie Safarova won their first Grand Slam women's doubles title
Czech Lucie Safarova thrashed 2008 champion Ana Ivanovic 6-3, 6-3 to storm into the fourth round of the French Open in Paris, on Saturday.
The Czech teenager beat Italian fourth-seed Flavia Pennetta in the final of the Australian women's hardcourt championship.
World No 9 Lucie Safarova will miss this month's Australian Open as she has yet to regain full fitness following a bacterial infection last year, the Czech said on Friday.
Former champion Ana Ivanovic was at her brilliant, aggressive best on Tuesday. The seventh seed swept aside Ukraine's Elina Svitolina 6-3, 6-2 to storm into the French Open semi-finals.
Unseeded Safarova will take on Russian Nadia Petrova, who beat holder Amelie Mauresmo of France in the other semi-final.
Former world number one Ana Ivanovic's alarming slump was prolonged by Czech Lucie Safarova in the first round of the Pan Pacific Open on Sunday.
Petra Kvitova and Lucie Safarova put the Czech Republic on the brink of the Fed Cup title with victories on the opening day of the final against Germany on Saturday.
World No 7 Elena Dementieva came from a set down to defeat Czech Lucie Safarova 6-7, 6-1, 6-4 to win the Paris Indoor Open for the first time on Sunday.
Russian Nadia Petrova ended Lucie Safarova's brilliant run at the Paris Open when she outfoxed the Czech 4-6, 6-1, 6-4 in Sunday's final
Despite Venus' misguided advice, Serena Williams beat Lucie Safarova 6-3, 3-6, 7-6.
Number one seed Elena Dememtieva reached the final of the Paris Indoor Open for the second year running on Saturday when she recovered from a set down to beat 18-year-old American Melanie Oudin 4-6, 6-3, 6-3. The Russian, ranked number seven in the world, will face Lucie Safarova in the final after the Czech also came from a set down to overturn the Italian second seed Flavia Pennetta 4-6, 6-3, 6-4.
World number one Serena Williams survived a mid-match meltdown to beat Czech Lucie Safarova 6-3, 6-7(2), 6-2 to win the French Open on Saturday, her 20th Grand Slam singles trophy.
Mauresmo stayed on course to defend her Australian Open title with a 6-3, 6-1 win over Czech Eva Birnerova in the third round on Friday.
Kim Clijsters and Justine Henin were forced to draw on their vast experience to avoid being eliminated from the Brisbane International on Thursday. The two Belgians, both back on the professional circuit after retiring from the sport, scraped through their quarter-finals to remain on course for a possible showdown in Saturday's final.
World number one Dinara Safina took a first step towards a second consecutive claycourt title by battling to a 6-3, 7-6 victory over Li Na at the Madrid Open on Wednesday.
Justine Henin is likely to be favourite to win the Australian Open but Serena said she believes she could retain the trophy.
World number one Roger Federer moved closer to a Sony Ericsson hat-trick on Monday, easing into the fourth round of the Masters Series event with 7-5 6-3 win over Spain's Nicolas Almagro.
A battle-tested Serena Williams booked her spot in the semi-finals of the Toronto Cup on Friday after overcoming a sluggish start to grind out a 4-6, 6-3, 6-2 win over Czech Lucie Safarova.
Venus Williams beat Czech Lucie Safarova 6-1, 6-4 in the second round of the Italian Open
American Bethanie Mattek-Sands and the Czech Republic's Lucie Safarova claimed their third consecutive grand slam doubles title with a convincing 6-2, 6-1 victory over Australian duo Ashleigh Barty and Casey Dellacqua at the French Open on Sunday.
Top seed Simona Halep was pooled with grand slam winners Maria Sharapova and Flavia Pennetta in a formidable looking Red Group for the end-of-season WTA Finals on Friday.
Serena Williams backed the searing Perth conditions as perfect preparation for her Australian Open title bid but the weather proved too hot for Canadian Eugenie Bouchard.
World No 1 Williams, 33, could not practise on Friday, still suffering from an illness that left her coughing and spluttering during her three-set semi-final win over Swiss Timea Bacsinszky.
World number four Petra Kvitova sealed the Fed Cup title for the Czech Republic with a thrilling win over Germany's Angelique Kerber, giving her country its third success in the premier team tournament in women's tennis in the last four years.
Romanian fifth seed Simona Halep advanced to the third round of the U.S. Open with a 6-3 6-4 win over Lucie Safarova on Thursday in the first full match played under a closed roof at Arthur Ashe Stadium. The $150 million retractable roof was installed ahead of this year's tournament and guaranteed there would be at least some action on a muggy and overcast Day Four at the year's final grand slam.
Sania Mirza and her Czech partner Barbora Strycova suffered a straight-set loss against Bethanie Mattek-Sands and Lucie Safarova in the summit clash of the WTA Wuhan Open on Saturday. The third seeds lost 1-6 4-6 to the fifth seeded US-Czech pair of Mattek-Sands and Safarova in the finals of the USD 2,589,000 tournament that lasted a little over an hour.
Spain's Garbine Muguruza moved to the brink of the WTA Finals last four with a 6-4, 6-4 win over Angelique Kerber on Wednesday after Petra Kvitova opened her account with a 7-5, 7-5 victory over fellow Czech Lucie Safarova.
World number one Karolina Pliskova needed just 46 minutes to defeat American Jennifer Brady 6-1, 6-0 at Arthur Ashe Stadium and punch her ticket to the quarter-finals at the US Open on Monday.