World number one Maria Sharapova opens proceedings on Rod Laver Arena under the roof, as rain falls outside

Sharapova is her usual determined self as she comes through 6-3 6-1 against Tathiana Garbin

Andy Murray takes the first set against Juan Ignacio Chela, with a place against Rafael Nadal in the fourth round at stake

Murray goes two sets ahead in commanding style and looks determined to avenge last year's defeat by Chela

Chela gives Murray a few dicey moments in the third but can't stop the Scot cruising to an impressive 6-3 6-2 6-4 win

Lleyton Hewitt drops the first two sets against Fernando Gonzalez and has to scrap hard to get back into the game

Gonzalez concedes the third set but comes back in the fourth to dump home favourite Hewitt out 6-2 6-2 5-7 6-4

For the second time in Melbourne, David Nalbandian is two sets down - this time against Sebastien Grosjean

Grosjean can afford to smile as he engineers three match points at 5-4 in the third set

But the indestructible Argentine battles back from the brink of defeat to move into the fourth round

Rafael Nadal doesn't even need to watch the ball as he cruises to victory over Stanislas Wawrinka

James Blake maintains his run of straight-sets wins in the tournament with 7-6 (9-7) 7-5 6-2 victory over Robby Ginepri

Kim Clijsters takes only an hour to seal a place in the fourth round with a 6-3 6-3 win over Alona Bondarenko

Vera Zvonareva has few problems progressing into the next round and dispenses with Ana Ivanovic 6-1 6-2

Martina Hingis completes another straight-sets win in the women's event, seeing off Aiko Nakamura of Japan 6-2 6-1

Patty Schnyder goes into a third set against Alicia Molik but holds off the Australian's challenge to win 3-6 6-2 6-0