David Nalbandian struggles for form as he takes on Juan Carlos Ferrero in a rain-delayed third-round match

Ferrero, seeded 22nd, takes advantage of Nalbandian's poor form to win 6-1 6-2 6-3 and reach the last 16

It's back to the drawing board for 10th seed Nalbandian, who began the tournament as one of the favourites for the title

Daniela Hantuchova enjoys a trouble-free 6-2 6-3 win over Spain's Virginia Ruano Pascual

Top seed Justine Henin is more like her old self as she sweeps past Su-Wei Hsieh and into the quarters

Phillip Kohlschreiber cannot build on his win over Andy Roddick and goes down in four sets to Jarkko Nieminen

Richard Gasquet is the latest player to find fellow Frenchman Jo-Wilfried Tsonga a hard man to deal with

Tsonga, who beat Andy Murray in round one, claims another top-10 scalp and reaches his first Grand Slam quarter-final

Maria Sharapova demolishes fellow Russian Elena Dementieva in 62 minutes to set up a clash with Justine Henin

Nicole Vaidisova fails to take her chances and loses in straight sets to Serena Williams

Mikhail Youzhny enjoys a tremendous 7-6 (7-2) 6-3 6-1 victory against fourth seed Nikolay Davydenko

World number four Jelena Jankovic survives a tricky encounter with Casey Dellacqua but does enough to reach the quarters

Dellacqua accepts her run is over but it's not all bad news as the Australian plans to buy a new car with her winnings

Second seed Rafael Nadal, yet to drop a set in Melbourne, is in absolutely stunning form against Paul-Henri Mathieu

Mathieu receives treatment twice on his left calf but decides to retire from the match after dropping serve in the second

Nadal consoles Mathieu but probably does not feel too sorry for him after notching up his seventh win over the Frenchman