The Indian ace and Yung-Jan Chan of Taipei were beaten in straight sets by Agnieszka and Urszula Radwanska of Poland in the final of the Istanbul Cup.
Maria Sharapova fought her way into the semi-finals of the LA Championships on Friday with a 6-4, 7-5 win over Polish teenager Urszula Radwanska. Sharapova will face Flavia Pennetta in the last four after the Italian stunned second seed Vera Zvonareva of Russia 6-4, 6-2.
Petra Kvitova, Rafael Nadal, Andy Murray and Jo-Wilfried Tsonga battled their way into the third round of the French Open on Thursday.
Former champion Maria Sharapova raised her game when it mattered to storm into the BNP Paribas Open quarter-finals with a 7-5, 6-0 victory over Spaniard Lara Arruabarrena-Vecino on Tuesday.
Serena Williams, coming off a double Olympic gold medal-winning performance in London, said she was feeling the pace of a hectic schedule after a lethargic display in her 6-3, 6-0 win over Urszula Radwanska on Thursday.
Martina Hingis has no plans of returning to play singles on the women's tour after a courageous performance in a Fed Cup defeat by Agnieszka Radwanska in Zielona Gora, Poland, on Saturday in her first major match in eight years.
World number one Roger Federer will start his bid for a 16th grand slam title against 36th-ranked Russian Igor Andreev in the first round of the Australian Open next week.
Venus Williams earned her first victory of 2006 when she defeated Urszula Radwanska 6-3, 6-3 to reach the second round in Warsaw.
It was a day of mixed fortunes for India at the French Open on Friday. Leander Paes sailed into pre-quarter-finals of the men's doubles, but Sania Mirza crashed out of the corresponding event for women. Sania and Taipei's Chia-Jung Chuang, seeded 14th, were knocked out 6-4, 6-7(5), 3-6 by the unseeded Polish pair of Agnieszka and Urszula Radwanska. Third seeds Paes and Lukas Dlouhy defeated James Cerretani and Sergiy Stakhovsky 4-6, 6-3, 6-2.
Agnieszka Radwanska has bared it all. The world No.4 has revealed herself in the latest edition of ESPN The Magazine Body Issue.
Maria Sharapova suffered a shock 7-6(4), 6-3 defeat to compatriot and wildcard Daria Gavrilova.
Top seed Caroline Wozniacki and former World No 1 Venus Williams ensured Auckland Classic organisers' dream final remained on track with the duo both recording comfortable victories in their first round matches on Tuesday.
Serena Williams has been vulnerable this Grand Slam season but unbeaten in the year's first three major championships.