Serena Williams beat Barbora Zahlavova Strycova of Czech Republic 6-0, 6-4 to finish off her second-round match at the Australian Open here on Thursday and her 500th career win, while Chinese Zheng Jie advanced to the next round of both women's singles and double event in four hours.
Russia's golden girl Maria Sharapova spent only 64 minutes disposing of an American qualifier to reach the third round of the Australian before setting her mind on a life-long goal to win a medal for Russia at the Olympics.
World No 1 Caroline Wozniacki fought off a second-set fightback to reach the Australian Open third round on Wednesday as Li Na and Kim Clijsters moved closer to a 2011 final rematch.
China's Li Na charged into the third round of the Australian Open with a 6-2 6-2 win over local hope Olivia Rogowska in the sunshine at Rod Laver Arena on Wednesday.
US Open champion Stosur crumbled once again under the huge weight of local expectation to crash out of the Australian Open 7-6 6-3 at the hands of Romania's Cirstea in the first round.
Chinese Zheng Jie advanced into the second round of the 2012 Australian Open here on Tuesday with an easy 6-2, 6-1 win over American Madison Keys, while Zhang Shuai was downed by Canadian Aleksandra Wozniak, failing to advance in her seventh effort in the Grand Slam event.
Rafa Nadal eased into the second round of the Australian Open with a fuss-free 6-4 6-1 6-1 win over American Alex Kuznetsov on Monday.
China's Li Na beat off a slow start to down Ksenia Pervak of Kazakhstan 6-3, 6-1 in stifling heat at the first round of the Australian Open.
A combative Rafa Nadal returned serve at sceptics who have questioned his motivation at the Australian Open on Sunday.
Li Na returns to Melbourne Park, the scene of her trailblazing run to the final that set up a platform for an unlikely French Open victory over champion Francesca Schiavone in June.
World number one Caroline Wozniacki will begin her quest to prove the doubters wrong and win a maiden grand slam when she meets Anastasia Rodionova on the first day of the Australian Open on Monday.
Germany's Andrea Petkovic did something completely out of character after winning her opening match at the Sydney International. She simply walked to the net and shook hands.