In a spin! Four wickets from Adam Zampa guides ruthless Aussies to emphatic nine-wicket win against minnows Namibia at T20 World Cup

Australia have qualified for the final eight at the Twenty20 World Cup following a comprehensive nine-wicket defeat of Namibia in Antigua.

After winning the toss and bowling, Adam Zampa (4-12) again was the star as Mitch Marsh's men skittled Namibia for just 72 runs.

It was the lowest total any side has posted in a T20 international match against Australia.

In response, Travis Head (34 not out) top-scored with the bat to ensure Australia reached Namibia's total in just the sixth over.

Skipper Marsh (18 not out) hitting the winning runs for four past deep extra cover.

Zampa conceded he 'bowled a couple of pies' which resulted in wickets - but in ominous news for their rivals, he believes the Aussies will only improve as the tournament deepens.

'The ball is coming out well,' he said.

'I'm just trying to do my thing....with the cross breeze here [in Antigua], you need to prepare well for the conditions.

'There is a long way to go, this is the first step for us as a group.'

Following his four wicket haul, Zampa became the first Australian men's player to snare 100 wickets at T20 level.

He also bowled 17 dot balls at the Sir Vivian Richards Stadium in a superb display of leg-spin bowling. 

Australia are now guaranteed to finish in the top two of Group B, meaning they will play in the tournament's Super 8 stage regardless of the result of Sunday's final group-stage match against Scotland.

If they finish top-two in their Super 8 group, the 2021 champions will progress to the knockout semi-finals.