AUSTRALIAN OPEN
**Venue: **Melbourne Park ** Date: **18-31 January
BBC coverage:](http://www.paklinks.com/sport2/low/tennis/6102132.stm)Every Murray match live on BBC 1 or 2
Daily from 0830 GMT: live on BBC Red Button/website, 5 Live sports extra
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**Former champion Justine Henin defeated fifth seed Elena Dementieva 7-5 7-6 to reach the Australian Open third round.**The Belgian, who came out of retirement this month, secured a crucial break in the first set and then held her nerve to win the second-set tie-break 8-6.
Henin’s compatriot Kim Clijsters, a possible last-eight opponent, overcame Thailand’s Tamarine Tanasugarn 6-3 6-3.
Leading seeds Dinara Safina, Svetlana Kuznetsova, Caroline Wozniacki and Victoria Azarenka all eased through.
Second seed Safina saw off Barbora Zahlavova Strycova 6-3 6-4 in the heat of the afternoon in Melbourne.
Last year’s beaten finalist made 40 unforced errors, compared to her opponent’s 31, but also hit 31 winners as she came through a scrappy match.
“In some moments I played not bad, but it’s good that I won the match and still there is so much room to improve,” said the Russian.
"That’s such a good thing, you know deep inside you have so much more to bring out.
“I think the serve was pretty good today - and I won. In the next match I can do a little bit more and more.”
**Clijsters **was always in control against world number 99 Tanasugarn but could never totally dominate a determined opponent.
“I feel like I’m good enough on the day to beat my opponents,” said the Belgian. “It’s not my best tennis yet, but hopefully I can save that when it’s really necessary.”
In Wednesday’s early matches there were no problems for the top women in action, although third seed **Kuznetsova **was some way off her best despite the convincing 6-2 6-2 scoreline against Anastasia Pavlyuchenkova on Rod Laver Arena.
“I have played for plenty of years already in Grand Slams and even though I’m 24, it feels like I’ve been here for a while,” said the French Open champion.
“I just get extra motivation when I play Slams, this is for what I work for, what I play for. You just enjoy it so much.”
“I had a tough opponent, so I was really happy to get through”
Caroline Wozniacki
Fourth seed **Wozniacki **was made to work hard in the first set before easing past Aleksandra Wozniak 6-4 6-2 on Hisense Arena.
“I had a tough opponent, so I was really happy to get through,” said the Dane. "I was feeling confident on the court and comfortable.
“I’m really happy about the way things are going and I’ve been practising hard, so I’m really pleased about the way I’m playing.”
Azarenka, the seventh seed, had no trouble seeing off Stephanie Cohen-Aloro 6-2 6-0, and ninth seed **Vera Zvonareva **beat Kristina Kucova by the same score.
Belgium’s Yanina Wickmayer continued her recent run of excellent form by knocking out 12th seed Flavia Pennetta 7-6 (7-2) 6-1.
Wickmayer, 20, won the Auckland Classic title earlier this month in her first tournament since a court overturned a one-year ban for breaking doping regulations.