I decided to go after their spinners Mark Cosgrove

Mark Cosgrove marked his international debut with 74 off 69 balls as Australia completed a 3-0 clean sweep in their one-day series in Bangladesh.

The 21-year-old hit two sixes and seven fours but was bowled with his side just two runs short of their target of 125.

Brad Hogg came out and struck the next ball for four to seal a nine-wicket win for an experimental Aussie team.

It took them just 22.4 overs to knock off the runs after Hogg (3-17) had helped dismiss Bangladesh for 124.

It was a depressing batting effort by the home side, who were up against a second-string Australian bowling attack.

The tourists went into the game at Fatullah with a 2-0 lead in the series and left out pacemen Brett Lee and Nathan Bracken.

Adam Gilchrist took over the captaincy for the tourists as regular skipper Ricky Ponting nominated himself as 12th man.

They only had to wait three balls for their first success after Bangladesh won the toss and chose to bat first as left-armer Mitchell Johnson won an lbw decision against Shahriar Nafees, who went for a duck.

Johnson picked up a wicket with the third ball of the match

Brett Dorey then had Aftab caught behind by Gilchrist for one in the fourth over and Mohammad Ashraful followed for 13 when a poor shot saw him caught at short mid-wicket off all-rounder James Hopes.

Rajin Saleh collected five boundaries in a dogged 37 off 102 balls but was bowled by Michael Clarke after missing an attempted sweep and once he had departed, only skipper Habibul Bashar batted with any conviction.

Bashar made 33 off 50 balls before Hogg lured him down the pitch and had him stumped by Gilchrist.

Only Khaled Mashud (11) reached double figures as Australia worked their way through the lower order and the home side were all out in the 43rd over when off-spinner Dan Cullen (2-25) had Mashrafe bin Mortaza caught at cover off the leading edge.

We have failed totally despite wicket, ground, toss, crowd, everything in our favour Bangladesh's Habibul Bashar

Facing such a paltry target, it was just a question of how long it would take Australia to knock off the runs.

And once Cosgrove had played himself in, it soon became clear that the answer to that question was 'not very long'.

After flicking an inswinger from Mortaza away through mid-wicket for four, he struck two boundaries through the off-side field off successive deliveries.

He reached his half century off 52 balls by lofting Saleh's off-spin over long-off for his first six and celebrated with another in the same direction, but this time with a much flatter trajectory.

His exuberance eventually got the better of him as he swung across the line and under-edged a ball from Abdur Razzak into his stumps, but he had already done enough to stake a claim for further opportunities at the ICC Champions Trophy in October.

Before then, Cosgrove will head to Wales where he is contracted to county side Glamorgan for the summer.

"He can play well square of the wicket, but he played very, very straight today which was fantastic to pick that up in his first game in these conditions.

"He's a great talent. But today I think the team showed it has a good depth of young players that are pressing for selection," Gilchrist commented.

Bangladesh: Shahriar Nafees, Rajin Saleh, Aftab Ahmed, Mohammad Ashraful, Habibul Bashar (capt), Alok Kapali, Khaled Mashud, Mohammad Rafique, Mashrafe Mortaza, Abdur Razzak, Shahadat Hossain

Australia: Adam Gilchrist (capt), Simon Katich, Mark Cosgrove, Michael Clarke, Andrew Symonds, Mike Hussey, James Hopes, Brad Hogg, Brett Dorey, Daniel Cullen, Mitchell Johnson