Chile substitute Martin Rodriguez scored his first international goal to salvage a 1-1 Confederations Cup draw with Australia that seals a mouth-watering semi-final tie against Portugal.
James Troisi scored his first Australia goal for over two years to give the Socceroos – who needed a two-goal victory to move above their opponents in Group B – a surprise half-time lead.
But Rodriguez, who was introduced at half time, levelled to calm Chile's nerves about elimination and ensure they finish second to pool winners Germany, who beat Cameroon 3-1 in Sunday's other game.
Australia, meanwhile, are out and finish third in the group as their winless Confederations Cup run extends to six matches despite a creditable performance against the world's fourth-ranked side.
Chile made a fast start, Arturo Vidal meeting Jose Fuenzalida's cross and forcing Mathew Ryan to parry away his volley from the edge of the area, with Eduardo Vargas unable to convert the rebound.
Australia threatened for the first time when Massimo Luongo forced a good close-range save from Claudio Bravo after Troisi's throughball and the Socceroos then took a surprise lead after 42 minutes.
After Vidal's header was deflected to safety at the other end, it should have been two for Australia before half-time, only for Trent Sainsbury to blaze over a volley from six yards after Cahill had presented him with the opportunity.
Eugenio Mena's cross was only half cleared by Sainsbury, allowing Vargas' header to keep the ball alive and Rodriguez to force his effort past Ryan from six yards.
Australia substitute Jamie Maclaren missed a clear opportunity at the other end when he could not make proper contact with Troisi's throughball, knocking his effort wide with only Bravo to beat.
But that was to prove Australia's last opportunity, as they still wait for their first victory over Chile, whose attention now turns to Wednesday's date with Portugal in Kazan.
