• Australian Open, Day Four

Peng inflicts pain on out of sorts Jankovic

Shuai Peng celebrates an upset victory over Jelena Jankovic © Getty Images

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Australian Open men's round-up:
Nadal lines up atomic Aussie

Jelena Jankovic became the first women's top-ten casualty at the Australian Open on Thursday as Shuai Peng knocked her out 7-6 6-3 in the second round.

Peng's victory continued a recent tradition of Chinese success at the tournament, following last year's semi-final appearances by Li Na and Zheng Jie. Seventh seed Jankovic started well, pulling out to a 5-2 lead before Peng's power hitting swung the momentum in the match. Jankovic never grasped control back and made her earliest Grand Slam exit since the 2009 US Open.

Jankovic was upbeat despite the surprise defeat to the 55-ranked Peng, saying afterwards: "Now I feel really good physically. I'm healthy. I can really be on the court and enjoying myself out there. It's the beginning of the season, only my third match of the year. I'm still rusty. I just have to get match tough again and play right in the important times of the match."

Earlier, Kim Clijsters impressed in the bright summer sunshine as she saw off Carla Suarez Navarro 6-1 6-3 in just over an hour. As Melbourne's traditional searing heat started to set in for the first time this tournament, Clijsters looked to end things quickly, hitting 21 winners and committing 24 unforced errors in an aggressive display. The match lasted just 62 minutes and Clijsters confirmed she had gone out with the intent to dominate.

"I went out there with the intention to stay very aggressive and to not let my opponent play her game, and that is try to really mix it up, play with a lot of spin," Clijsters said. "She can only do that when she has a lot of time. I think it was really up to me to try to limit that from her, really be aggressive when I was out there, and I did."

The No. 2 seed Vera Zvonareva survived the scare of losing the first set to Bojana Jovanovski before progressing with a 2-6 6-3 6-1 win.

The Russian believes she will benefit from being pushed hard by Jovanovski.

"It is definitely getting better, and that's what I wanted, this kind of match," Zvonareva said. "Maybe you're not playing perfect throughout the whole match, maybe a little bit inconsistent yet, but you still getting through this kind of match. And I really think that it will really help me to improve for the next one. I'm very positive about it.

"I'm maybe not as sharp yet as I want to be, but definitely this kind of match will help me to be better the next one," added Zvonareva who will face Lucie Safarova in the third round after she got the better of fellow Czech Klara Zakopalova.

Sam Stosur is determined to make her mark on her home grand slam and the No. 5 seed proved in a different league to Vera Dushevina, winning 6-3 6-2 in an hour and 20 minutes.

"I don't think Vera played too bad," Stosur said. "I was just really on it tonight. It was really pleasing to go through a match like that and feel like I pretty much did everything pretty well."

Russian No.13 seed Nadia Petrova ended one of the few Australian interests left in the tournament with a 6-4 6-1 triumph over Alicia Molik. The Aussie's 26 unforced errors gave Petrova nearly half of her 60 points in the match, and an impressive seven aces also helped the world No.15 earn some cheap points.

A couple of Russian seeds met their demises in the second round. No.18 seed Maria Kirilenko fell in straight sets to Iveta Benesova and Alisa Kleybanova, the 24th seed, lost 7-6 6-4 to Romania's Simona Halep.

Elsewhere, Agnieszka Radwanska marched into the third round by dismissing Petra Martic 6-3 6-4. No.10 seed Shahar Peer also rolled onwards in comfortable fashion, winning 6-3 6-2 against Sorana Cirstea.

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