Dulko is South America's No.1 in player in both singles and doubles - in fact she is her continent's only Top 150 player in either discipline (No.52 in singles, No.4 in doubles).

杜尔科是南美洲单打双打两方面的头号球员。事实上，她也是她所在的大陆中唯一一名单打双打都在150强内的球员(单打52，双打第4)。

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Petrova and Stosur seemed to have momentum on their side after winning the second set, but the super-tiebreak format allows both teams to start anew, and that worked in Dulko and Pennetta's favor.

在佩特洛娃和斯托瑟赢下第二局后，比赛似乎倒向了她们一边，但是超级抢七规则让两队不得不重新开始，而杜尔科和佩内塔似乎更适应这项规则。

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The 10th seed from Belarus was eliminated on Sunday by Gisela Dulko in a 6-1 6-2 defeat.

BBC: Serena Williams and Caroline Wozniacki make progress

Fourth seed Maria Sharapova was also in a hurry, beating 68th-ranked Argentine Gisela Dulko 6-0 6-1 in just 58 minutes.

CNN: STORY HIGHLIGHTS

In Buenos Aires, Gisela Dulko beat world number nine Svetlana Kuznetsova 6-4 3-6 6-4 to give Argentina the early advantage over Russia .

BBC: Chanda Rubin in action