MELBOURNE (REUTERS) - Andy Murray smashed a racket in a rare display of frustration, after being taken to a fourth set before reaching the quarter-finals of tennis' Australian Open with a 6-1, 6-2, 6-7 (6-8), 6-2 victory over lucky loser Stephane Robert on Monday.

After racing through the first two sets in just over an hour, Wimbledon champion Murray blew a couple of match points in the third and was dragged into a tie-break by the 33-year-old Frenchman, who won it 8-6.

It was the first set fourth seed Murray had lost in the tournament but, after a change of shirt, he whipped through the fourth set in 28 minutes to seal a quarter-final date against either Roger Federer or Jo-Wilfried Tsonga.

Robert was the first lucky loser to reach the fourth round at Melbourne Park and had won just four main-draw matches in 10 previous Grand Slam appearances.