Afghanistan have been the 'Cinderella' story of this World Cup, with their maiden win -- a thrilling one-wicket victory over Scotland in Dunedin last time out -- one of the highlights of the competition so far.
But the pace and bounce of the WACA pitch is unlike any surface Afghanistan have experienced before and, in such fast bowlers as Mitchell Johnson and Mitchell Starc, Australia have the attack to exploit the conditions.
It may well have been with this match in mind that International Cricket Council chief executive David Richardson told AFP on Friday: "I'm pleased with the performances of the qualifiers so far, but the bigger tests are still to come."
"As everyone knows the UAE has been our home ground due to security reasons and the pitches in UAE are slow and favour spin," said Afghanistan captain Mohammad Nabi.
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"Whereas tracks in Australia and New Zealand are very different, there is much more pace and bounce."
However, Afghanistan's last Pool A match against a Test nation saw them reduce Sri Lanka to 51 for four before Mahela Jayawardene's hundred restored the status quo.
The more concerning issue is how Afghanistan's batsmen will cope, although Samiullah Shenwari was in bullish mood about the prospect of playing Australia after his superb 96 set up up the win over Scotland.
"Hopefully we'll give them a tough time and we will not give up easy," he said.
"So we're looking forward to giving them a tough time and looking forward to winning the match."
Afghanistan still have a chance of gate-crashing the quarter-finals, standing just a point behind Australia after losing to Bangladesh and Sri Lanka before beating the Scots.