With both sides having qualified for the World Cup in Brazil, a capitulation of such epic proportions would have caused Socceroos' fans real concern, as the side raced into a 3-0 lead with former Everton man Tim Cahill netting 2-0 on his return to the Den, and Crystal Palace captain Mile Jedinak also scoring from the spot.
But if Cahill and co thought the match was as good as won, they were about to receive the shock of their lives.
They were still coasting at the start of the second half, but in the 57th minute Ecuador netted their first through Fidel Martinez, before Australia goalkeeper Mitch Langerak was sent off for a foul on Enner Valencia, with Segundo Castillo netting the resulting penalty past Liverpool's Brad Jones.
Manchester United winger Antonio Valencia, Ecuador's captain, then crossed for his namesake for the equaliser on 77 minutes, before robbing the Australia defence to set up Edison Mendez's last minute winner, and complete the most unlikely of comebacks.
image: © Magnus D