Kusal Mendis' excellent 69 was influential in helping Sri Lanka beat Australia by five wickets and avoid a 5-0 series whitewash in the final T20I in Melbourne.

Opener Mendis carried his bat, hitting five fours and a six off 58 deliveries as Sri Lanka reached their 155 target with just a ball to spare at the MCG.

Captain Dasun Shanaka made a valuable 35 off 31 before departing to Kane Richardson in the final over, while Charith Asalanka made a swift and important 20 off nine.

Earlier, Australia had posted 154-6 having struggled with the bat early in the innings, Matthew Wade top scoring with 43 not out.

The hosts defended pretty well but ultimately did not have enough runs on the board to secure a clean sweep of the series.

AUSSIES SLOW OFF THE MARK

Australia will defend the T20 World Cup on home soil later this year and have used this series to experiment with a few ideas.

On this occasion here, they struggled to get going with the bat and lost openers Aaron Finch (8) and Ben McDermott (3) cheaply.

Josh Inglis (23) and Glenn Maxwell (29) made starts without posting big numbers and had Wade - who had two fours and two sixes in his 27-ball knock - not contributed then it would have been an even tougher outing.

MAGIC MENDIS

One of the key difference makers was Sri Lanka's aggression in the powerplay. The tourists hit 54 runs for the loss of two wickets, compared to Australia's 22.

Asalanka's cameo certainly gave Sri Lanka momentum, but Mendis earned Player of the Match recognition for a fine performance.