Australia got off to a cracking start at the Thuwunna Stadium in Yangon on Friday with three goals in the opening 20 minutes, and were 4-0 up by the break.

Goals from Stefan Mauk, Eintracht Braunschweig’s Milislav Popovic and a brace from Adelaide United's new signing George Blackwood gave the Aussies an unassailable lead in the first half.

Just on the hour Trent Buhagiar won possession out wide before the cut-back was converted to bring up the Olyroos fifth and Popovic’s second of the match.

Central Coast Mariners speedster Buhagiar continued to terrorise the Singapore defence and when he was brought down in the box, Newcastle Jets’ Devante Clut calmly slotted home the penalty on 67 minutes to make it 6-0.

Jaushua Sotirio then made up for a near miss in the first half when the defence failed to deal with a corner – the Western Sydney Wanderers winger shooting low past the goalkeeper to complete the rout.

With a few minutes left to go Singapore were reduced to 10 men following a reckless challenge on Buhagiar.

Australia coach Josep Gombau was full of praise for his boys, telling "We are happy with our performance today, we played a good game.

"Everything that we worked on we could show here today. The first match we played against Brunei, we missed our chances to score. That was better this time, we could use our chances. I am satisfied with both games. 

"I am looking forward to the next game, I am very excited, Myanmar is a good strong team. The stadium will be full and that will also be the kind of game we want to play."

Following their 2-0 win over Brunei Darussalam, the Olyroos now sit joint of Group F with host nation Myanmar, who they face on Sunday, with direct qualification to next year's tournament in China at the stake.

The ultimate aim is a berth at the 2020 Olympics in Tokyo. The Olyroos have not qualified for the Games since 2008.