World number one and top seed Caroline Wozniacki continues her quest for her first Grand Slam title. But China's Li Na, who beat her in the tournament last year, is the bookmakers favourite for their semi-final
Li comes into the match on a 10-match unbeaten run and an 11th victory would herald the first Chinese player into a Grand Slam singles final
Dane Wozniacki shows plenty of Scandinavian cool as she cruises through the opening set 6-3 in 39 minutes
Li clings on in the second set and is rewarded for her tenacity as she faces down a match point and takes the match into a decider
Li proves the stronger in the final set and extends her winning streak in 2011, at the same time making history for her nation
Li must now await the winner of the second semi-final between Kim Clijsters and Vera Zvonareva
World number one Wozniacki misses out on another chance to land her maiden Grand Slam title
British junior George Morgan, 17, advances to the semi-finals of the boys' singles with a 5-7 6-2 6-3 victory over eighth seed Jeson Patrombon. The Bolton teenager won the Orange Bowl title in Florida in December
On Margaret Court Arena Indian pair Mahesh Bhupati and Leander Paes are harmonised in celebration after beating Max Mirnyi and Daniel Nestor to make the final of the men's doubles
Third seed Kim Clijsters drops serve at the start of the second semi-final but quickly makes amends and begins to take control
Vera Zvonareva simply cannot make any impression on the Clijsters serve after that early break and loses the first set in little over half an hour
Things do not get much better for the Russian, a finalist at Wimbledon and the US Open last year, as she continues to struggle against Clijsters powerful groundstrokes
Clijsters brings the contest to an end after an hour and 13 minutes with a break of serve
Clijsters, whose best perfomance at the Australian Open was a three-set defeat by Justine Henin in the 2004 event, will have another crack at the title in Saturday's final
Day 12 on Rod Laver Arena continues with the first of the men's semi-finals between third seed Novak Djokovic and second seed Roger Federer
Serve dominates the opening set after Federer fails to take the only break point in the very first game
It comes down to a tie-break and it is Djokovic who takes command with a couple of mini-breaks as he wins it after 57 minutes
Former world number one Ana Ivanovic is among those supporting her fellow Serb from the stands
Djokovic looks well on his way when he gets the first break of the match to lead 2-1 in the second set
With night falling, the Rod Laver Arena remains packed to the rafters as Federer and Djokovic do battle
A first glimpse of the Federer fist-pump after the 16-time Grand Slam champion overturns the break of serve, holds to love and then breaks again for a 4-2 lead in the second set
Djokovic looks to hit straight back in game seven and engineers two break points - but Federer saves both, the second with an exquisite lob which leaves his opponent swinging at thin air
The lob leaves Djokovic on the canvas but the 2008 champion dusts himself off to break Federer at 3-5 and 5-5 before serving out for a two-set lead
Are Federer's hopes of a fifth Australian Open and 17th Grand Slam title dying in front of his very eyes? The Swiss squanders three break points in game two of the second set and is then broken in game three
The Federer fans refuse to give in and neither does their man, rallying to level the third set at 4-4 and letting out a huge cry of "Allez!"
But this is the be Djokovic's day and the world number three shows magnificent defensive resilience and no shortage of aggression to move 5-4 ahead and then serve out for a famous victory on his third match point
For the first time since 2002, Federer is not in possession of any of the four Grand Slam titles. Djokovic, meanwhile, goes on to meet either Andy Murray or David Ferrer in Sunday's final
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