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Caroline Wozniacki of Denmark holds small souvenir boats during their WTA Tour Championships tennis match in Doha, the capital of Qatar, Oct 28, 2010. [Photo/Agencies] |
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Wozniacki joined Australia's Samantha Stosur as a semifinals qualifier from the maroon group at the expense of Elena Dementieva, the Olympic champion from Russia, who will be out even if she beats Schiavone on Friday.
The turning point came in the fourth game of the second set when Wozniacki appealed to the Hawkeye computerised replay system.
The Italian complained that the line judge's call had denied her a chance of trying to return the ball, but the umpire disagreed.
Francesca Schiavone of Italy serves to Caroline Wozniacki of Denmark during their WTA Tour Championships tennis match in Doha, Oct 28, 2010. [Photo/Agencies] |
That annoyed Schiavone, firing her up to cling on to her service game for 1-3 after a long tussle. There immediately followed another lengthy struggle in which Wozniacki was made to survive two deuces before holding serve and reaching 4-1 for a stranglehold on the second set.
In the third, the Dane saved a break back point for 2-2 and followed it by winning the rally of the match.
Kim Clijsters, playing her first tournament since the successful defence of her US Open title six weeks ago, made sure of qualifying for the semifinals with victory over Victoria Azarenka.
Clijsters overcame the world number ten from Belarus 6-4, 5-7, 6-1, guaranteeing that both she and Zvonareva, who she plays on Friday, will go through.
Earlier, Dementieva beat Stosur, the world number five, 4-6, 6-4, 7-6 (7/4), but by taking the opening set the Aussie did enough to secure her passage.