Czech top seed Tomas Berdych struggled past Dmitry Tursunov 7-6 (7-2), 4-6, 6-1 on Wednesday at the ATP Washington Classic in his first match since losing the Wimbledon final to Rafael Nadal. Coming off his first Grand Slam championship match, ninth-ranked Berdych fired 16 aces but connected on only 48 percent of first serves over two hours and 17 minutes against Russian ranked 514th whose first 2010 win came Monday. “I was quite struggling with the serve. It's the reason I was playing a long time,” Berdych said. “It's about feeling the rhythm of the serve. I was resting a little after Wimbledon, four weeks. I lost a little bit of the rhythm. It's good to get back into matches.” Argentina's David Nalbandian snapped a five-match losing streak to Swiss Stanislas Wawrinka by 6-1, 6-3 to reach the third round. Serbian Janko Tipsarevic blasted 16 aces to oust US sixth seed Sam Querrey 7-6 (7-3), 6-3 in a rematch of a Los Angeles semifinal in which Querrey saved a match point and rallied to win on his way to capturing the title. Tipsarevic will next face Colombia's Alejandro Falla, who led 7-5, 3-2 when Australia's Lleyton Hewitt retired with a sore right calf muscle. Kleybanova stuns Jankovic Russian Alisa Kleybanova ousted top-seeded Serbian Jelena Jankovic 7-5, 6-2 Wednesday to reach the quarterfinals of the WTA San Diego Open. At No. 2 in the world, Jankovic became the highest ranked player beaten by Kleybanova, who now has four career victories against top five players. Second-seeded Australian Samantha Stosur made it safely into the quarterfinals with a 6-4, 6-4 victory over US teenager Melanie Oudin. Stosur, the French Open runner-up, used her powerful serve to control Oudin and broke the American late in each set to notch the victory. Polish fourth seed Agnieszka Radwanska and Israeli seventh seed Shahar Peer each advanced to the quarters with straight-set triumphs. Peer defeated Kazakhstan's Yaroslava Shvedova 7-5, 6-4 to book a date in the final eight against Radwanska, who downed former world No. 1 Dinara Safina of Russia 6-1, 6-3. Wozniacki advances Top-seeded Caroline Wozniacki rallied from a set down to reach the Danish Open quarterfinals with a 4-6, 6-2, 6-0 win Thursday over Iveta Benesova of the Czech Republic. Wozniacki will face fifth-seeded Julia Goerges of Germany for a spot in the semifinals. In other matches, Slovakia's Polana Hercog rallied to beat Britain's Anne Keothavong 4-6, 6-0, 6-4, Anna Chakvetadze ousted fellow Russian Anna Lapushchenkova 6-3, 6-4 and Sorona Cirstea of Romania overcame Slovenia's Katarina Srebotnik 7-5, 4-6, 6
