| By Eric C. Peck
Photo credit: Kenneth B. Goldberg

Day Six of the 2011 U.S. Open featured a number of seeded players advancing to next week's Final Round of 16. Both the men's and women's top seeds advanced as Serbian Novak Djokovic defeated Russian Nikolay Davydenko, 6-3, 6-4, 6-2, and on the women's side, top-seeded Caroline Wozniacki from Denmark defeated Vania King of the United States, 6-2, 6-4.

Djokovic advances to face the number 22 seed, Alexandr Dolgopolov of the Ukraine, who was a winner Saturday on Court 17 over Croatian Ivo Karlovic, 6-7(4), 6-2, 6-4, 6-4. Wozniacki will meet the number 15 seed, Russian Svetlana Kuznetsova in the fourth round, as Kuznetsova was a 6-4, 6-2 winner over Akgul Amanmuradova from Uzbekistan.

On the men's side, the number three seed Roger Federer was tested by Croatian Marin Cilic, the number 27 seed, at Arthur Ashe Stadium, but in the end, was a 6-3, 4-6, 6-4, 6-2 winner. Federer's win sets up a meeting with unseeded Juan Monaco of Argentina who was a 6-7(3), 6-3, 6-2, 6-3 winner over Germany's Tommy Haas.

American Mardy Fish, the number eight seed, faced a tall order at Louis Armstrong Stadium on Saturday in the form of 6 ft.-8 in. South African Kevin Anderson. But it was Fish who advanced with a 6-4, 7-6(4), 7-6(3) win over Anderson. Fish moves on to face Jo-Wilfried Tsonga, the number 11 seed from France. Tsonga defeated Fernando Verdasco, the number 19 seed from Spain, 6-3, 7-5, 6-4.

Rounding out men's singles action, the Czech Republic's Tomas Berdych, the number nine seed, was down 4-6, 0-5 when he was forced to retire against the number 20 seed, Serbian Janko Tipsarevic. Berdych aggravated a right shoulder injury, as Tipsarevic advances to round four action to face the unseeded Juan Carlos Ferrero of Spain. Like Tipsarevic, Ferrero's Saturday afternoon opponent, the number 31 seeded Frenchman Marcel Granollers, was forced to retire with an abdominal injury with Ferrero up 6-1, 4-3 in the match.

On the women's side, in addition to Wozniacki and Kuznetsova moving on, the number 28 seed, American Serena Williams knocked off the number four seed, Victoria Azarenka from Belarus, 6-1, 7-6(5). Up next for Serena in her path lies the number 16 seed, Serbian Ana Ivanovic, who was a winner in just 74 min. under the lights on Saturday against 18-year-old American Sloane Stephens, 6-3, 6-4.

"I think in the first set, I played some really good tennis, and in the second set she played really, really good tennis," said Serena. "She [Azarenka] kind of dictated and I allowed that. I probably could have played better in the second, but it's good to know that I have some things I want to work on."

At Louis Armstrong Stadium, the number 11 seed, Serbian Jelena Jankovic was defeated by the number 17 seed, Russian Anastasia Pavlyuchenkova, 4-6, 4-6. The 20-year-old Pavlyuchenkova will face the number seven seed, Francesca Schiavone of Italy who defeated South African Chanelle Scheepers on the Grandstand, 5-7, 7-6(5), 6-3.

Germany's Andrea Petkovic was a 6-4, 6-0 winner over Italy's Roberta Vinci, the number 18 seed, setting up a match next week between the 10th-seeded Petkovic and the unseeded Carla Suarez Navarro from Spain, a 6-0, 6-4 winner on Court 17 over another Spaniard, the unseeded Silvia Soler-Espinosa.

In mixed-doubles action, a big upset occurred on Court 17 as the unseeded American duo of Melanie Oudin and 18-year-old Jack Sock defeated the top-ranked mixed-doubles team of Liezel Huber & Bob Bryan, 2-6, 6-3, 1-0(6). Another upset took place on Court 7 as the unseeded American duo of New York's Irina Falconi and California's Steve Johnson upended the number two-seeded mixed-doubles pairing of Slovenia's Katarina Srebotnik and Canada's Daniel Nestor, 6-4, 3-6, 1-0(8).

Of local relevance, in second round action in the Junior Girls Qualifying Singles, Oyster Bay, N.Y.'s Julia Elbaba, the number 13 seed, was a 6-2, 6-2 winner over Texan Blair Shankle. And in Junior Boys Qualifying Singles, Merrick, N.Y.'s Noah Rubin fell to Israel's Bar Botzer, 4-6, 4-6.

Credit all photos to: Kenneth B. Goldberg

Photo credit: Kenneth B. Goldberg

Serbian Ana Ivanovic was a winner in just 74 min. under the lights on Saturday against 18-year-old American Sloane Stephens, 6-3, 6-4


Photo credit: Kenneth B. Goldberg

Serbia's Novak Djokovic defeated Russian Nikolay Davydenko, 6-3, 6-4, 6-2 on Saturday at the 2011 U.S. Open


Top-seed Caroline Wozniacki of Denmark advanced to the Round of 16 on Saturday


Francesca Schiavone of Italy advanced at the 2011 U.S Open with a 5-7, 7-6(5), 6-3 winn over South African Chanelle Scheepers


Serbian Jelena Jankovic, the number 11 seed, was upset by Russian Anastasia Pavlyuchenkova on Saturday, 4-6, 4-6


American Mardy Fish defeated big South African Kevin Anderson, 6-4, 7-6(4), 7-6(3)


Third-seeded Roger Federer defeated Croatian Marin Cilic on Saturday to advance


Germany's Tommy Haas was defeated by the unseeded Juan Monaco of Argentina, 6-7(3), 6-3, 6-2, 6-3

Eric C. Peck is Editor-in-Chief of Long Island Tennis Magazine. He may be reached by e-mail at eric@litennismag.com