Western Sydney's dream season is set for one last thrilling chapter, after the Wanderers overcame Brisbane Roar 2-0 to reach the A-League grand final in their maiden season.
Dino Kresinger and Shinji Ono grabbed the goals for the hosts, whose only blemish on an otherwise perfect evening was the dismissal of influential winger Youssouf Hersi.
Two poor tackles means he will miss next Sunday's grand final at Sydney's ANZ Stadium, where the Wanderers will face either Central Coast or Melbourne Victory.
Kresinger mustered the match's first shot on goal on 15 minutes, drawing a save out of Michael Theo. He did not waste his second opportunity just a minute later, superbly back-heeling home Mark Bridge's cross after Hersi's darting run.
Brisbane carved out a handful of half-chances, while Kresinger failed to make the right connection on a header in the 24th minute.
The Wanderers seemed to have more class to their build-up play, but the Roar dug in through Mitch Nichols, captain Thomas Broich - having overcome an ankle injury pre-match - and Luke Brattan.
Broich seemed not to misplace a ball, while Ono - despite being cheered with every touch - was somewhat less influential.
Bridge and Hersi were happy to shoulder their share of the load, however, even though the latter showed his wicked side with a poor tackle on Brattan on 34 minutes that warranted a yellow card.
Bridge sought to gain some reward for his hard work when his drive was beaten away by Theo in the 40th minute, while the Roar could have had a case for a penalty when Yianni Perkatis bundled Brattan over as the Brisbane man forged into the area.
Kresinger missed a glorious chance to make 2-0 just two minutes into the second half when unmarked in the box, and Roar winger Ben Halloran nearly made him pay soon after when his long-range drive got Wanderers goalkeeper Ante Covic scrambling.
Opposite number Theo had to be even more aware when he saved from both Bridge and Mateo Poljak in the 55th minute, with a block from Perkatis' follow-up preventing the need for a triple save.
It was the visitors, however, who largely took control of the second half's early stages, and Halloran drove straight at Covic just after the hour mark.
But the Roar's job was made harder when Broich limped off after 69 minutes, and just two minutes later his side were on the ropes and reeling.
Somewhat ironically, it was Ono who struck the blow. The Japanese controlled Kresinger's flick-on with a feathered touch before curling his chip over Theo.
The win lost some of its lustre when a needless lunge by Hersi incurred a second yellow card and his dismissal. Besart Berisha should have followed him as injury time loomed for kicking out at Kresinger, but it mattered little to the result.