All Top 10 members playing the BNP Paribas Open on Tuesday progressed to the quarterfinals of the tournament without too much trouble.

World No.7 Elena Dementieva and world No.8 Agnieszka Radwanska retained perfect records against their fourth-round opponents at Indian Wells with the Russian fourth seed beating No.19 seed Aravane Rezai 6-3 6-3, and now having a 6-0 career record against the Frenchwoman, while fifth seed Radwanska beat No.11 seed Marion Bartoli 6-3 6-2, extending the career record against the Wimbledon finalist to 5-0.

World No.4 Caroline Wozniacki, second seed and the highest seed left in the draw, recovered from a second set slump and charged through the deciding set to beat seed No.16 Nadia Petrova 6-3 3-6 6-0. Wozniacki's opponent in the quarterfinals will be Chinese force Zheng Jie, who knocked out Maria Sharapova in the third round and Alicia Molik in the fourth. Ninth-ranked Jelena Jankovic defeated No.17 seed Shahar Peer 6-2 6-2 to advance to the quarterfinals of the Premier-level tournament.

Even though all the Top 10 players progressed, defending champion Vera Zvonareva, seeded 12th, lost to No.8 seed Samantha Stosur 6-2 7-5. (source: Sony Ericsson WTA Tour, photo: Tidalist)

Seed No.14 Kim Clijsters and third seed Victoria Azarenka made premature exits at the BNP Paribas Open, while sixth seed Jelena Jankovic fought her way into the fourth round.

Two-time Indian Wells champion Kim Clijsters lost to Alisa Kleybanova 6-4 1-6 7-6(4) in the third round, despite storming through the second set and having a 4-0 lead in the third-set tiebreak.

"I definitely think I let it slip away but credit to her," said Clijsters after losing to the No.23 seed. "She played some really good points to get back into it."

Victoria Azarenka fell to 28th-seeded Maria Jose Martinez Sanchez 7-6(4) 6-2 at the very tournament that propelled her into the Top 10 last year. The Belorussian quickly fell behind 5-1 and even though she saved four set points and leveled to 5-5, she lost the first set and shortly after the second as well.

Sixth-seeded Jelena Jankovic beat Sara Errani 2-6 7-6(6) 6-4 despite making 57 unforced errors compared to Errani's 42. The world No.9 quickly lost the first set, won the second in a tiebreak, and let her experience prevail in the decider of the marathon match to prevent Errani from scoring her first Top-10 victory in 12 attempts. (photo: Stephane Martinache)

Seed No.18 Zheng Jie overcame tenth seed Maria Sharapova 6-3 2-6 6-3 after two hours and 43 minutes of topsy-turvy marathon in the third round of the BNP Paribas Open.

Sharapova made 14 double faults, 62 unforced errors and was broken seven times during the match. Zheng broke Sharapova's serve three times in the first set, then the Russian leveled after the second set which lasted one hour and eight minutes, and finally, Zheng came back from 3-1 down in the decider to win the match.

"She's like a ball machine. She hits a lot of balls back, hits them hard and deep. I should have done a much better job on her serve because that is definitely one of her weaker parts of the game," said the world No.13 Sharapova, who received treatment for her right elbow during the match.

The 26-year-old Chinese, a surprise semifinalist at this year's Australian Open, will next play Australian wildcard Alicia Molik. (source: Reuters, photo: Nick Bollettieri)

Here’s our monthly update on Maria Sharapova’s relationship with Sasha Vujacic. In February the couple was spotted enjoying a casual day in Los Angeles, and now Sasha is following Maria in her career obligations, accompanying his Russian girlfriend in Indian Wells. These photos were taken on March 13.

Maria is seeded 10th at the BNP Paribas Open in Indian Wells. She had a bye in the first round, while in the second round she defeated Vera Dushevina in three sets. Right now Masha is playing her third-round match against seed No.18 Zheng Jie of China. (source: Great Tennis Photos)

Top seed Svetlana Kuznetsova was upset by Carla Suarez Navarro 6-4 4-6 6-1, who earned her second Top 10 win, having famously beaten then-No.6 Venus Williams at last year's Australian Open. Kuznetsova came back from a set and a break down to force the third set, but lost it very quickly and became the first No.1 seed in eight years to lose her first match at Indian Wells, since 2002 when Kim Clijsters fell to now-retired Nathalie Dechy.

Ana Ivanovic, seeded 24th this year, was defeated 6-2 6-4 by world No.63 Anastasija Sevastova in the second round, and Ivanovic won't be even a Top 50 player any more. The Serb hired a new coach, the former one of tennis legend Steffi Graf, but the light at the end of the tunnel is still nowhere to be seen.

Two-time Indian Wells champion Kim Clijsters defeated Barbora Zahlavova Strycova 6-2 6-1, while seed No.21 Daniela Hantuchova, another former champion in this year’s draw, suffered a 6-3 7-5 upset by Roberta Vinci. (photo: Tidalist)

Argentinean world No.37 Gisela Dulko defeated seven-time Grand Slam champion Justine Henin in the second round of the BNP Paribas Open in Indian Wells, while British qualifier Elena Baltacha upset seventh seed Li Na of China.

The 31st-seeded Dulko broke wildcard Henin’s serve three times in the third set, converting every break point she had, before scoring a 6-2 1-6 6-4 win. When Dulko won the match, after two hours, she fell to her knees as spectators applauded to congratulate her on this amazing victory over Henin, who was a Grand Slam finalist less than two months ago.

The 26-year-old Baltacha achieved her first Top 10 victory by beating tenth-ranked Li Na in the second round. Baltacha’s win came after two hours and 50 minutes, two saved match points, recovery from 5-1 down in the third set tiebreaker and after the Briton "fought her heart out". World No.65 Baltacha's final result was 7-6(6) 2-6 7-6(7).

Dulko’s opponent in the third round will be fifth seed Agnieszka Radwanska, while Baltacha will play wildcard Alicia Molik. (photo: Ralf Reinecke)

As promised, Women's Tennis Blog is continuing its tradition of revising on-court outfits from the season behind us. This year's retrospections will start with the best-dressed WTA player – Nike-clad Maria Sharapova.

Sharapova started the season late, because of her career-threatening shoulder injury, playing her first match of 2009 at the BNP Paribas Open in March. She was introducing herself to competitive tennis slowly, playing doubles first, but her style had to be spot-on from the very beginning, and it was.

People argued that Sharapova’s Roland Garros dress had too much fabric, but I liked it, and I especially favored the blue color against the red clay. Read more »

Victoria Azarenka has become the second Belorussian player to enter the Top 10 in the Sony Ericsson WTA Tour rankings, after Natasha Zvereva in the 1980s.

The 19-year-old Azarenka reached the semifinals at the BNP Paribas Open in singles, while in doubles she won the title with Russian Vera Zvonareva, who was the eventual singles champion. These results enabled Azarenka to become a Top 10 singles player for the first time. Simultaneously, winning her second doubles title of the year, Azarenka climbed from No.18 to No.10 in doubles.

The Belorussian is the only teenage player within the Top 10. (photo: Ralf Reinecke)

After claiming the 2009 Indian Wells doubles title with Victoria Azarenka, Vera Zvonareva went on to win in singles too, defeating defending champion Ana Ivanovic 7-6(5) 6-2 in the Sunday’s final.

The fifth-seeded Ivanovic started both sets with a 2-0 lead. In the first set Zvonareva won four games in a row to give herself a 4-2 lead, then Ivanovic came back and was even close to taking the first set, but lost in the tiebreak, while in the second the fourth-seeded Zvonareva won all the games after Ivanovic’s initial lead.

Russia's Zvonareva has won her ninth career singles title on the Sony Ericsson WTA Tour, and second this season.

Zvonareva is projected to replace Venus Williams at the No.5 spot when the rankings are released on Monday. Ivanovic will remain world No.7. (photo via Yahoo)

Ana Ivanovic is now one step away from defending her Indian Wells title, but she will have to overcome red-hot Vera Zvonareva.

The fourth-seeded Zvonareva reached the final by beating doubles partner Victoria Azarenka 6-3 6-3. The Russian didn’t drop serve once during the semifinal, and broke the eighth-seeded Azarenka a total of three times.

"It wasn't much of an experience. It was just a wasted match," Azarenka said. "I didn't play the game I needed to play. It was only unforced errors for me. Vera played well, but I didn't do even 10% of my game."

Despite the loss, Azarenka is projected to debut in the Top 10 when the new rankings are released on Monday.

Ivanovic, the fifth seed, put an end to Anastasia Pavlyuchenkova’s dream run, defeating the unseeded 17-year-old 6-2 6-3. Pavlyuchenkova scored her first two Top 10 wins at this year’s Indian Wells by upsetting Jelena Jankovic and Agnieszka Radwanska, but couldn’t get past the defending champion.

The eighth career meeting between Zvonareva and Ivanovic is scheduled for Sunday. (source and photos: Sony Ericsson WTA Tour)