Juan Martin del Potro, Flavia Pennetta are weekend winners

Juan Martin del Potro defends his title in Washington D.C., coming back from 3-1 down in the final set to defeat Andy Roddick 3-6, 7-5, 7-6(6) in the final.

In the mens' doubles, Martin Damm and Robert Lindstedt added more silverware to an already successful debut season together by clinching their third ATP World Tour title.

The Czech-Swedish duo overcame fifth seeds Mariusz Fyrstenberg and Marcin Matkowski 7-5, 7-6(3).

Meanwhile at the LA Women's Tennis Championships, French Flavia Pennetta defeated Sam Stosur 6-4, 6-3 defeat of Sam Stosur in the final.

In the women's doubles, Chia-Jung Chuang of Chinese Taipei and Zi Yan of China outplayed Maria Kirilenko and Agnieszka Radwanska 6-0, 4-6, 10-7.

(Images via Yahoo! Sports)

Maria Kirilenko beats Samantha Stosur for Korea Open title; lost in doubles final

Russia's Maria Kirilenko has won the 2008 Hansol Korea Open.

This is Kirilenko third singles title of the year, having also won Tier IV titles during the clay court season in Estoril and Barcelona.

The no.1 seed who was runner-up last year to Venus Williams improved on that result Sunday afternoon against Australia's Samantha Stosur.

"I think this year, I’m a much better player, and I also had more difficult wins than last year," Kirilenko said during the press conference after her win.

"From the, I don’t know, the first round, I didn’t know the girl with whom I played, but anyway, she played quite good. And then from the second round to the final, I had very good players. And I’m really happy that I beat all of them. I feel that I’m improving, you know."

Kirilenko rallied from a set down to claim the Tier IV title with a 2-6, 6-1, 6-4.

However, Kirilenko who was back on Centre Court for the doubles final with her partner Vera Dushevina lost to defending champions Chuang Chia-Jung and Hsieh Su-Wei.

(Image by JUNG YEON-JE/AFP/Getty Images)

Pan Pacific Open: Marion Bartoli, Nadia Petrova and Chuang Chia-Jung attended sushi demonstration

Marion Bartoli, Nadia Petrova and Chuang Chia-Jung attended a sushi demonstration and tasting in Tokyo.

Here are the photos of the event.

Chuang Chia-Jung, Marion Bartoli and Nadia Petrova learn how to make sushi from a Japanese sushi chef.

Nadia Petrova tastes her self-made sushi.

Chuang Chia-Jung and Marion Bartoli still haven't get their sushi into their mouths.

Chuang Chia-Jung is not even biting her sushi.

By the way, based on the Toray Pan Pacific Open Tennis tournament results today, Petrova won the second round after beating Ana Ivanovic 6-1, 1-6, 6-2.

Bartoli lost to Agnieszka Radwanska 2-6, 3-6.

In the women's doubles, Chuang and partner Su-Wei Shieh made it through to the semifinals in a walkover win against Maria Kirilenko and Flavia Penneta.

(Images via Toray PPO official website)