Playing in only his second game after returning from a finger injury in the World Cup earlier this year, Martyn belted his first 50 from 22 balls the equal ninth fastest half-century in one-day internationals.

Australia cracked 148 for one wicket in 20.2 overs after bowling out Bangladesh for 148 from 45.1 overs.

During his ferocious assault, Martyn smashed 15 fours and one six.

His first 50 included nine fours and a six.

With Australia needing 10 runs to win, Martyn was on 90.

At one stage he appeared to be within reach of completing the fastest century in international limited-overs company, the record which is held by Pakistan's Shahid Afridi who reached three figures from 37 balls.

But left-hander Michael Bevan, rated one of the best batsmen in the world in limited-overs cricket, ended any chance Martyn had of reaching three figures when he straight hit a ball from spinner Sanwar Hossain for successive boundaries.

Bevan finished with an unbeaten 40 from 62 balls, having partnered Martyn in an unbroken second-wicket stand of 131.

Earlier, Australia's spin bowlers, led by left-armers Darren Lehmann and Bradley Hogg, wrecked Bangladesh's batting.

Lehmann (3-16) and Hogg (3-31) had far too many tricks for the sport's newest international side as they nosedived to a poor total after a promising start.

The pair took over from the pace assault which destroyed the tourists' innings in the first clash the previous day when the home team won by eight wickets.

Off-spinner Andrew Symonds (1-24) also joined in.

Lehmann, who has scored two Test centuries against Bangladesh in recent weeks, celebrated his 100th one-day game with his best bowling figures in limited-overs internationals. His three scalps came from only 4.1 overs.

The burly South Australian showed great agility and throwing accuracy to run out skipper Khaled Mahmud.

Hogg also snared career-best figures.

In an amazing turnabout, express bowler Brett Lee, Saturday's destroyer of Bangladesh, went wicketless from nine overs.

Australia chose to omit paceman Jason Gillespie, bringing in all-rounder Ian Harvey.

This left the attack without some of the sting which shattered the tourists the previous day when they were routed for 105.

Bangladesh, after winning the toss, showed more early batting resolve in this clash.

Openers Hannan Sarker (19 off 44 balls) and Javed Omar (11 off 52) posted 37 for the first wicket before Sarker chased a wide ball from Harvey and was caught behind by Adam Gilchrist.

Omar, in for the injured wicketkeeper Khaled Mashud, fell victim to a vicious short ball from fast bowler Andy Bichel, giving Gilchrist a second catch.

Hogg struck when Sanwar Hossain (3) hit a catch to Ricky Ponting at mid-wicket.

Hogg claimed Al Shahriar (8) when he lofted a chance to Martyn in the deep.

His third scalp came when a brilliant diving catch by Bichel at mid-off disposed of Tushar Imran (2).

Symonds snared a wicket with his second ball when Habibul Bashar (31 from 56 balls) edged a simple return catch to the bowler.

Lehmann then sent back Tapas Baisya (2), Mohammad Rafique (6) and Alok Kapali (34) as all three fell to catches in the deep.

Kapali's runs came from only 44 balls, with two boundaries.