The Hunter outfit gave the Sky Blues an almighty scare in the semi-final after coming from two goals down to level the scores and send the match into extra time.

it took something special to decide the match and Emily Sonnet provided it.

The US international ran the length of the Leichhardt Oval pitch to play in veteran Matilda Lisa De Vanna, who put away a low drive to seal the result in the 97th minute.

Sydney looked on track for a comfortable win in the first half after Aussie international Caitlin Foord scored the opener on six minutes.

Kylie Ledbrook then doubled the advantage on 34 minutes with a stunning shot that dipped wickedly under the crossbar to evade Jets goalkeeper Britt Eckerstrom.

It went from bad to worse for the Jets when Hannah Brewer was controversially red-carded on the cusp of half time for denying De Vanna a clear goal scoring opportunity.

But in a gripping fightback Arin Gilliland clawed one back on 53 minutes before Tara Andrews squared it 2-2 in the final moments of extra time.

Sydney will be sweating on the fitness of Foord who limped off the pitch at half time with a foot injury.

Meanwhile Premiers Brisbane Roar will face off against Melbourne City at Perry Park on Sunday to see who will meet the Sky Blues in the Grand Final.