Postpublished at 81 mins
Tunisia 0-1 Australia
There will be some biting of nails in Sydney and Melbourne.
Australia can see the finishing line.
Another Tunisia corner. Another huge clearance from the Socceroos defence.
RESULT: Tunisia 0-1 Australia - Mitchell Duke's first-half header keeps the Socceroos' tournament hopes alive
Reaction as England draw 0-0 with USA and Wales lose 2-0 to Iran
England top Group B and need point in final game against Wales to qualify
Wales must win and hope USA-Iran is a draw
Four games on Saturday: Tunisia v Australia (10:00 GMT), Poland v Saudi Arabia (13:00), France v Denmark (16:00), Argentina v Mexico (19:00)
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Neil Johnston
Tunisia 0-1 Australia
There will be some biting of nails in Sydney and Melbourne.
Australia can see the finishing line.
Another Tunisia corner. Another huge clearance from the Socceroos defence.
Tunisia 0-1 Australia
Karen Bardsley
Former England and Manchester City goalkeeper on BBC Radio 5 Live
Tunisia keep coming forward. It feels like it's only a matter of time before they score.
Tunisia 0-1 Australia
Around 10 minutes of normal time left. A huge 10 minutes for both teams. Will Australia protect their lead?
Tunisia 0-1 Australia
Vicki Sparks
BBC commentator
Tunisia's fans aren't happy with the amount of time taken by Leckie to hobble off the pitch but one thing we do know at this World Cup is that if there is a stoppage, the time will definitely be added on.
Tunisia 0-1 Australia
Time running out for Tunisia. They've sent on some more fresh legs. Taha Yassine Khenissi and Wajdi Kechrida are on.
Australia have sent on Milos Degenek.
Tunisia 0-1 Australia
Danny Murphy
Former England midfielder on BBC One
Tunisia are committing men into the box now. Desperate faces from their fans, they know they're running out of time.
It's all or nothing, they've got to take risks.
Tunisia 0-1 Australia
41,823 inside the ground. Most of them are cheering for Tunisia. They're a little quiet right now.
Tunisia 0-1 Australia
Danny Murphy
Former England midfielder on BBC One
Aaron Mooy has been brilliant, both parts of his game. The technical ability but also getting in the right positions defensively and reading the danger.
Tunisia 0-1 Australia
Yassine Meriah has made more clearances (17) and headed clearances (11) than any other player at the 2022 World Cup.
Tunisia 0-1 Australia
That should be Australia over the line!
Substitute Jamie Maclaren does really well to whip in a low cross but Mathew Leckie cannot connect.
Will they pay for not taking their chances?
Tunisia 0-1 Australia
Karen Bardsley
Former England and Manchester City goalkeeper on BBC Radio 5 Live
I’m looking forward to seeing Khazri play. He’s a very aggressive, pressing player but he also does the work off the ball.
He’s what Tunisia need to keep this momentum in their favour.
#bbcfootball
Lucas Green: This is a low-quality match.
Tunisia 0-1 Australia
The TV camera zooms in on a group of Australian fans. They're smiling. Their side are 20 minutes or so away from a first win on the World Cup stage since 2010.
Tunisia 0-1 Australia
Danny Murphy
Former England midfielder on BBC One
Tunisia are really lacking quality in the final third. They're getting themselves into some really good positions but the final ball has been poor.
Tunisia 0-1 Australia
Now then. Will the experienced Wahbi Khazri deliver for his country? He's on for Aissa Laidouni with more than 20 minutes left on the clock.
Tunisia 0-1 Australia
More frustration for Tunisia as Ali Abdi becomes their second player to be booked. It looks like they are going to make some more changes. Plenty of time for them to get back in this but the clock is ticking.
Tunisia 0-1 Australia
Vicki Sparks
BBC commentator
Ajdin Hrustic enters the field, he was the real breakout star of Australia's qualifying campaign.
Tunisia 0-1 Australia
Emma Sanders
BBC Sport at Al Janoub Stadium
Australia have seen off 20 minutes of Tunisia pressure this half. How long can they keep this up for? One goal on the counter-attack would change everything.
Tunisia 0-1 Australia
Double change for Australia. Mitchell Duke is one of those going off. Ajdin Hrustic and Jamie Maclaren are on.
Tunisia 0-1 Australia
Karen Bardsley
Former England and Manchester City goalkeeper on BBC Radio 5 Live
We’ve seen some sloppiness and complacency from Australia. It looks like the pressure from Tunisia is starting to get to them.