Melbourne, Feb 22 Sri Lanka's survival in the cricket tri-series hung by a slender thread after they lost to world champions Australia by 24 runs in a rain-curtailed encounter here today.

Chasing Australia's modest score of 184 for seven, the islanders were 77 for four in 29.3 overs when rain forced a premature end to the proceedings with Sri Lanka well behind under the Duckworth-Lewis method.

The two on-field umpires, Simon Taufel and Rudi Koertzen, waited for the rain to stop till the cut-off of 10.20 pm local time before calling off play. Since a minimum of 20 overs are required to constitute a game, Australia were declared winners and also got a bonus point.

The result of the rain-affected game dealt a huge blow to Sri Lanka's quest for a berth in the best-of-three finals as they now need to win their remaining two matches to have a chance. They would also need India to lose to Australia in Sydney on Sunday.

With this victory, Australia confirmed their place in the finals and maintained their position atop the points table with 22 points from six games. India are second with 12 points from the same number of matches while Sri Lanka are at the bottom with six points from as many matches.

Sri Lanka did well to restrict the powerful Australian line-up to a moderate total but their batsmen once again let them down. (Agencies)