Test your tennis IQ

...following players won a higher percentage of points when returning second serves than Serena Williams? A. Victoria Azarenka B. Peng Shuai C. Caroline Wozniacki D. Jelena Jankovic E. All of the above F. None...

Test your tennis IQ

...following players won a higher percentage of points when returning second serves than Serena Williams? A. Victoria Azarenka B. Peng Shuai C. Caroline Wozniacki D. Jelena Jankovic E. All of the above F. None...

'More consistent' Venus tops Schiavone in straight sets; Ivanovic next in semis

Italy's Flavia Pennetta beat Slovenia's Katarina Srebotnik 7-5, 6-2 Friday to reach the semifinals of the Zurich Open.

Pennetta gets first career win vs. Jankovic at Zurich Open

Jelena Jankovic's 12-match winning streak was snapped Thursday by Flavia Pennetta, who beat the top-ranked Serb 5-7, 6-3, 6-3 in the second round of the Zurich Open.

Mauresmo, Hantuchova, Cornet ousted in first round

Two-time Grand Slam winner Amelie Mauresmo was upset by Victoria Azarenka 6-2, 6-1 in the first round of the Zurich Open.

Some still jockeying for position to qualify for the year-end championships

The ATP and WTA championships will harness the top eight players in each field, respectively, for an opportunity to conquer the lucrative year-end events.

Jankovic topples Venus, will face '06 champ Petrova in Stuttgart final

Soon to be No. 1 Jelena Jankovic beat Venus Williams on Saturday to reach the Porsche Grand Prix final, overcoming a painful foot for a 6-7 (8), 7-5, 6-2 victory over the Wimbledon champion.

Azarenka knocks off Olympic champion Dementieva; Venus advances

Venus Williams reached the Porsche Grand Prix semifinals, defeating third-seeded Dinara Safina 6-4, 6-2 Friday in the first match between the players.

Serena to lose No. 1 ranking after upset loss at Porsche Grand Prix

Serena Williams' game collapsed after she swept the first set Wednesday, leaving her with a 0-6, 6-1, 6-4 loss to China's Li Na that will cost her the No. 1 ranking.

Bondarenko sends No. 15 Pennetta packing; Bartoli advances

Qualifier Kateryna Bondarenko of Ukraine rallied to upset 15th-ranked Flavia Pennetta of Italy 4-6, 6-2, 6-1 Tuesday at the Porsche Grand Prix.

Great Dane riding a sweet season into match versus Jankovic

Growing up, ice cream was Caroline Wozniacki's motivation to play tennis. On Sunday, she'll take her sweet, businesslike game into the fourth round of the U.S. Open in one of the biggest days of her career.

NEW YORK - AUGUST 29: Caroline Wozniacki of Denmark serves against Victoria Azarenka of Argentina during Day 5 of the 2008 U.S. Open at the USTA Billie Jean...

Davenport, Dementieva, Kuznetsova, Jankovic win; Chakvetadze upset

Lindsay Davenport enjoyed a brisk workout on her return from a two-month injury layoff with a 6-4, 6-2 win over Aleksandra Wozniak in the first round of the U.S. Open.

Time is ripe for Safina to take advantage of ailing tour members

A majority of the game's top stars will limp into the U.S. Open, leaving the door wide open for red-hot Dinara Safina to claim her first major.

Federer, Nadal, Djokovic advance in Games tennis tourney

Roger Federer avenged a defeat four years ago at the Olympics by beating Tomas Berdych of the Czech Republic 6-3, 7-6 (4) Wednesday to reach the quarterfinals.