Pics: Guangzhou Evergrande v Western Sydney Wanderers
The Wanderers went into the match against Guangzhou Evergrande protecting a slender 1-0 lead after last week's quarter-final first leg at Pirtek Stadium.
And despite a 2-1 loss , the A-League side did just enough against the defending champions to advance on away goals.
Tomi Juric scored the crucial away goal from the penalty spot to give the visitors a shock lead 14 minutes after the break.
But goalkeeper Ante Covic was the real hero after saving a first-half spot-kick from Elkeson.
Goals from Alessandro Diamanti and Elkeson put it at 2-2 on aggregate and set-up a grandstand finish with the home side needing one more to advance.
But it was Tony Popovic's men who dug deep to pull off a momentous night for the club.
Click on the links below to see the action from Tianhe Stadium. Pics by Getty Images.