In a long and closely-fought rain-interrupted Sony Ericsson Open quarterfinal, Andrea Petkovic followed up her win over world No.1 Caroline Wozniacki with a 2-6 6-2 6-4 upset of sixth seed Jelena Jankovic, Miami runner-up to Serena Williams in 2008.

In the first set, the seventh-ranked Jankovic faced no break points and won 80% of points on her serve, compared to Petkovic's 49%. Also, she won 51% of return points, compared to Petkovic's low 20%.

German world No.23 Petkovic established a 2-0 lead in the beginning of the second set and even though Jankovic had multiple break points in the third game, after a long fight Petkovic increased the lead to 3-0 and solidly went on to win the set 6-2.

In the decider, it was Jankovic who was first in the better position, leading 4-2, but it was obvious it wouldn't be an easy job for her. Petkovic took charge and even though Jankovic kept fighting, and maintained the match thrilling until the end, Petkovic won four straight games to reach the semifinals of the $4,500,000 tournament. (photo: sr_cranks)

Player parties provide a perfect venue for players to get in touch with their glamorous side (if they have one) and the blue red carpet on Tuesday night at the Paris Theater in Miami was one of the best such occasions.

Let's start with my favorites. Russian Anna Kournikova simply knows what to wear and how to work it, while her countrywoman Vera Zvonareva looks very pretty in a romantic purple dress.

Although I've been in the mood for floral prints lately, Anastasia Plavyuchenkova's dress is too much for my taste. Maria Sharapova is still faithful to her vintage-oriented style. Read more »

The WTA Tour interviewed a lot of players about their favorite songs at the moment and they got very colorful answers. From Shahar Peer who doesn't listen to music, Kim Clijsters who is "getting older" and listens to the same CDs over and over again, doubles partners Flavia Pennetta and Gisela Dulko who not surprisingly love the same song, JJ who has no idea, but later admits she's haunted by Katy Perry's "Fireworks", and the others who listen from U2, Mark Ronson and Celine Dion to the latest Lady Gaga and Rihanna hits.

Check out the fun video yourself:

In the encounter of two Serbian players and former No.1s, Ana Ivanovic eliminated defending champion Jelena Jankovic 6-4 6-2 in the fourth round of the BNP Paribas Open. Ivanovic, who won the tournament in 2008, having defeated Jankovic in the semifinals, has now extended her career record against the compatriot to 7-3.

Sixth-seeded Jankovic, who defeated current world No.1 Caroline Wozniacki to win the Indian Wells title last year, converted only one of seven break opportunities and after the match, the 26-year-old said how she felt flat, how her feet were not moving and her best game was not there. Ivanovic, on the other hand, was solid and took advantage of Jankovic’s weaknesses.

Quarterfinal opponent of the nineteenth-seeded Ivanovic will be Marion Bartoli. The Frenchwoman advanced when Kim Clijsters retired from their fourth-round encounter with a shoulder injury, despite winning the first set. Clijsters has been taking painkillers for the shoulder problem since before she won the 2011 Australian Open.

Here's how concerned Clijsters is about the injury: "On hard courts I know that I am able to control it. I'm concerned for what's coming up next, and that's the claycourt season." (photo via WTA Tour)

Jelena Jankovic started her title defense well, with a dominant 6-2 6-1 victory over American Coco Vandeweghe. The sixth-seeded Jankovic faced no break points during the entire match, while she broke the error-prone teenager, who was making her debut in the Indian Wells main draw, twice in the first set and three times in the second set.

Next for Jankovic is Julia Goerges, seeded No.32. If Jankovic wins that match and Ana Ivanovic wins in the third round against Barbora Zahlavova Strycova, the two Serbs will have an encounter in the fourth round.

All the players that advanced to the third round are known now and most seeded players are through, including Kim Clijsters, Vera Zvonareva and Francesca Schiavone. Only seed No.12 Petra Kvitova and seed No.30 Tsvetana Pironkova lost in the second round on Friday. Kvitova was defeated by Zahlavova Strycova, while Pironkova fell to qualifier Alize Cornet. (photo: Johan Rivera)