It the first time since 2013, the Young Matildas have made the final of the AFF Women's Championship but they come up against three-time winners and reigning champions Thailand.
The 2013 team, which lost the final in a penalty shootout to Japan's U23's side, included current Matildas Chloe Logarzo, Hayley Raso and Amy Harrison.
Since then the Young Matildas, Australia's Under 20's side, have finished third in 2015 and fourth in 2016.
The AFF Women's Championship has been a rare opportunity for the team to be able to play in an international competition.
"This tournament has been a great learning moment for all involved," Young Matildas coach Leah Blayney said.
The two sides have previously met this tournament as Thailand took the win and top spot of group A with a 4-2 win over the Young Matildas in the final group stage match.
The Young Matildas were able to hold out Thailand for 51 minutes but once they got on the ball in the goal, they were rampant, scoring four goals in the space of 13 minutes including a four-minute hat-trick from Sung-Ngoen.
The Young Matildas were able to fight back though and scored two goals.
Heading into the final, the lose to Thailand has been their only one and they have been able to score 34 goals across five matches.
"We showed a really strong mentality to recover after conceding against the run of play – coming off the back of our strong end to the match against Thailand in our last group game," Blayney said.
“That kind of spirit puts us in a good space for the final where we have a chance to further implement our principles of play and face another test against a quality senior national team,” she said.
Thailand v Young Matildas
Kick-off: 7pm local, 10pm AEST
Live stream: https://mycujoo.tv/video/pssi-tv