Carpenter, who plays her club football for the Sydney Wanderers, was a late addition to the squad for the competition due to an injury to Aivi Luik and could become the first Australian woman born in this millennium to appear for her country on the international stage.

Sharon Wass is the youngest player to play for Australia having earned her first cap during a clash with New Zealand in 1981 aged 14 years and 240 days.

Stajcic, a former semi-professional footballer and guided the Matildas to the quarter-finals of last year’s FIFA Women’s World Cup in Canada, is set to rest several key players for their encounter with Vietnam at the Yanmar Stadium.

Co-captain and veteran Lisa De Vanna looks likely to miss out as Stajcic rotates his squad following their surprise opening victory over hosts Japan.

The Japanese, silver medallists from London 2012 and also the World Cup runners-up, had been expected to prevail against their world number nine ranked opponents at the Nagai Stadium.

De Vanna scored the opening goal during the 3-1 win over Japan, during which Michelle Heyman and Katrina Gorry also found the net.

“There will probably be six or seven changes to the team that starts against Vietnam,” Stajcic said.

“We only had four players who didn’t get on against Japan plus the three substitutes that came on so at the moment I’m expecting that the majority of those players will start tomorrow.”

Stajcic is expecting a tough challenge when they take on Vietnam and warned his side against any complacency as they bid to secure a second straight victory.

“I’ve watched their game against China and they were very well organised and made it hard for China to score," he said.

“The two goals China scored were off a corner and the other one was a penalty - aside from that they didn’t really create many other chances.

“I’m almost wiping those two games we played against them in Sydney before last year’s World Cup because Vietnam only came over at the last minute and maybe they weren’t as well prepared as they could have been.

“We’re certainly not going to be complacent.

“We’ll show them a lot of respect, and getting these three points will be just as crucial as the ones we got against Japan.”

In the other matches due to take place tomorrow, Japan meet South Korea while North Korea take on China.

The tournament in Osaka is a six-team round robin with the top two qualifying for Rio 2016

Australia did not qualify for Beijing 2008 or London 2012.