The 27-year-old faded away after going into the final in the Belgrade event.
Former French Open champions Argentine Gaston Gaudio and Spaniards Carlos Moya and Albert Costa have all pulled out of Wimbledon because of injury.
Jelena Jankovic will either play defending champion Maria Sharapova or Tatiana Golovin in the final.
Argentine Gaston Gaudio made a comfortable start to his French Open title defence by beating Frenchman Julien Benneteau 7-5, 6-0, 6-1 on Monday.
Leander Paes and Nenad Zimonjic beat the Bryan brothers 3-6, 7-6 (5), 7-5 in the quarterfinals.
Leander Paes and Nenad Zimonjic received a bye in the first round and would meet Nicolas Kiefer and Alexander Waske
The Chelsea manager said he needs to strengthen the Premier League champions with three new players next season.
The Belgian injured her right leg in an awkward slide to the net during a third-round match against Switzerland's Patty Schnyder.
They won the Monte Carlo Masters doubles at Monaco after their third seeded opponents Bob and Mike Bryan conceded a walk-over in the final.
Mahesh Bhupathi and Fernando Gonzalez of Chile upset eighth seeds Simon Aspelin of Sweden and Todd Perry of Australia at the Monte Carlo Tennis Masters Series.
They thrashed Azerbaijan 8-0 while England, Croatia, Belgium and the Czech Republic easily won their World Cup qualifying matches.
The duo lost in the quarter-finals of the Pacific Life tennis tournament.
The duo would now take on top seeds Knowles and Nestor in the Pacific Life tennis championship.
The Indian ace's match against Svetlana Kuznetsova and the quarter-final against Jelena Jankovic will be telecast on March 3, from 1930 hours.
The Indian ace will donate his prize money from the Chennai Open tennis tournament for the tsunami victims.
Venus Williams and Vera Zvonareva registered second-round victories at the Advanta Championships in Philadelphia on Thursday.
Indian eves suffered a disastrous 1-2 loss against 27th seed England in the 14th and final round of the women's section of the Chess Olympiad.
But their medal hopes remain dim after the 13th and penultimate round of the 36th Chess Olympiad.
Gunning for the silver medal are Russia and United States who have 25.5 points each.
Indian eves came up with yet another emphatic performance in the 10th round of the women's section of the 36th Chess Olympiad.
P Harikrishna and S S Ganguly lost their games as India went down to defending champions Russia in the Chess Olympiad.
Indian eves cruised to an emphatic 2-1 victory over eighth seeds France in the eighth round of the 36th Chess Olympiad.
The Indian men succumbed to their first defeat going down 1.5-2.5 to slip to joint sixth spot after the seventh round of the 36th Chess Olympiad.
The Indian eves survived some anxious moments before salvaging draws in all the three games against Poland in the fifth round of the 36th Chess Olympiad.
Surya Shekhar Ganguly beat Gabriel Sargissen to help the Indian men register a 2.5-1.5 victory over Armenia in the fifth round of the 36th Chess Olympiad.
The Russians will clash in the semi-finals of the China Open.
The Indian youngster went down to ninth seed Yi Chu-Huan of Chinese Taipei at the Canadian Open junior tennis championships.