In his first international appearance for two years, Al Shamrani – who was banned for eight games for spitting at Western Sydney’s Matt Spiranovic in the 2014 AFC Champions League final – scored in the 80th minute to salvage a point for the Green Falcons in front of a raucuous crowd at Jeddah’s King Abdullah Sports City.

It leaves Australia undefeated on top of Group B with seven points – but only ahead of Saudi Arabia on goal difference, with Japan and the United Arab Emirates one point behind and tied for third.

Tuesday’s World Cup qualifier in Melbourne against Japan – who beat Iraq 2-1 overnight thanks to a 95th minute winner – now has even greater importance.

Ange Postecoglou’s side were on course for a remarkable come-from-behind win, trailing after just five minutes but taking a 2-1 lead through goals from Trent Sainsbury and Tomi Juric.

They made a nervy start in front of 51,616 screaming Saudis and looked rattled when midfielder Taiseer Al Jassam put away a cutback from Yaha Al Shehri to open the scoring.

But with the home side seemingly content to sit back and defend their lead, the Socceroos eventually settled and took control of the game, owning 55 per cent of possession despite energy-sapping heat and humidity.

Just before the half-time break, Sainsbury rose highest to nod home an Aaron Mooy corner – Australia’s first for the match – to bring a hushed silence across the stadium.

Saudi coach Bert van Marwijk produced his trump card early in the second half, sending Al Shamrani on to mass applause in the 54th minute.

He made an immediate impact, and along with Nawaf Alabid forced his nemesis Spiranovic into a heroic double-block to keep scores at one goal apiece.

Tensions nearly boiled over when the Saudis were urging the ball to be put out of play to allow treatment for defender Omar Othman, who was lying on the ground behind play.

A fuming Postecoglou had to be held back by the fourth official as he reacted to what appeared to be a verbal barrage from the opposing bench.

Othman was taken off on a stretcher with Saudi Arabia’s final substitution and not long after, a cross from Robbie Kruse unleashed Juric, who put the visitors 2-1 in front.

However, the lead lasted just eight minutes, as Al Shamrani managed to get a foot on a shot from Hassan Muath Fallatah in the 80th minute to guide it past Mat Ryan and add further intrigue to this stage of World Cup qualification.

-AAP