Serena Williams steamrolls into US Open quarterfinals

Serena Williams overcame windy conditions and a tough opponent Monday in the fourth round of the US Open. No. 1 seed Caroline Wozniacki, along with Serena Williams, will go on to the quarterfinals, expected to be played Wednesday.

Serena Williams is back and playing like a champ during early rounds of the US Open, following a foot injury and illness earlier this year.

The three-time former champion beat former world No. 1 Ana Ivanovic of Serbia, 6-3, 6-4, Monday to reach the quarterfinal round. Williams, who has not lost a single set during the tournament, will next take on Anastasia Pavlyuchenkova, the 17th seed from Russia.

The ladies top seed, Caroline Wozniacki, needed three sets Monday evening to defeat Svetlana Kuznetsova, 6-7, 7-5, 6-1, and advance into the quarterfinals. The world's No. 1 player on the women's side, Wozniacki rallied from one set down and losing 1-4 in the second set to beat the 15th-seeded Kuznetsova.

Also reaching the women's quarterfinal round is No. 10 seed Andrea Petkovic of Germany, who will be Wozniacki's next opponent.

On the men's side Monday, American Mardy Fish lost a grueling match against Jo-Wilfried Tsonga of France, 6-4, 6-7, 3-6, 6-4, 6-2. The 11th-seeded Tsonga now faces former Open champion Roger Federer, who dispatched Juan Monaco in straight sets.

Novak Djokovic, the men's top seed, also advanced Monday, defeating Alexandr Dolgopolov of Ukraine in four sets. He will face 20th seed Janko Tipsarevic of Serbia in the quarterfinals.