Deservedly so, Argentina march on and we get to see Messi again.
Post update
This was Garang Kuol's chance at the end of the game for Australia that nearly forced extra time...
This is a remarkable stat but Kuol has only played 388 minutes of senior football for club and country.
Triumph one end... tears the other
Argentina 2-1 Australia
Chris Bevan
BBC Sport at Ahmad Bin Ali Stadium, Qatar
Argentina's fans serenade their players at one end...
BBC SportCopyright: BBC Sport
...while at the other, The Australia players say goodbye to their supporters.
Most of the stadium is celebrating and singing, apart from that tiny pocket of yellow.
BBC SportCopyright: BBC Sport
Get Involved
#bbcfootball, via WhatsApp on 03301231826 or text 81111 (standard network charges apply)
SMS Message: A step too far for Australia tonight. But they've played some great football in this World Cup and have really taken Ozzie football forward. from Marcus
A step too far for Australia tonight. But they've played some great football in this World Cup and have really taken Ozzie football forward.
SMS Message: Honestly think Van Gaal's tactics will stifle Argentina in the QFs. They will smother any flair from Messi and co. from Alan
Honestly think Van Gaal's tactics will stifle Argentina in the QFs. They will smother any flair from Messi and co.
Post update
FT: Argentina 2-1 Australia
The Netherlands have beaten African champions Senegal, Asian champions Qatar and North American champions USA at this World Cup.
Next up, South American champions Argentina.
Post update
FT: Argentina 2-1 Australia
Have a little watch of the highlights below if you didn't see the game.
Post update
FT: Argentina 2-1 Australia
Rio Ferdinand
Former England defender on BBC One
How is he doing this? He is embarrassing players with his head up. He's taking people on and is able to see the whole pitch, where people are.
He is phenomenal.
Post update
FT: Argentina 2-1 Australia
Lionel Messi was very good but I wonder if Rio got a tad carried away there.
Post update
FT: Argentina 2-1 Australia
Rio Ferdinand
Former England defender on BBC One
The best individual performance from a player at this World Cup.
It was almost God-like. I've not seen anything like this.
Post update
FT: Argentina 2-1 Australia
That would have been one of the great World Cup moments if Garang Kuol has scored there. He is joining Newcastle from Central Coast Mariners in January.
Brilliant save by Martinez, he's come out and killed the angle. That's not a bad miss, that's a great save. Great goalkeeping. I didn't know if Australia would get another chance. They got it and they couldn't take it.
Post update
FT: Argentina 2-1 Australia
Argentina's defenders celebrated that save with Emiliano Martinez like he'd scored a goal.
Post update
FT: Argentina 2-1 Australia
Danny Murphy
Former England midfielder on BBC One
Would you believe it? Hits the target, it's a strong left arm.
The Australian dugout is disappointed. The euphoria of the Argentina players hugging Martinez.
FULL-TIME
Argentina 2-1 Australia
It's all over.
Argentina play the Netherlands on Friday for a place in the World Cup semi-finals.
Australia gave it a good go there but they're out.
Post update
Argentina 2-1 Australia
Andy Cryer
BBC Sport in Qatar
The scarves are waving, the fans singing, the feet jumping.
Ahmad bin Ali is a cauldron of noise.
Now the whistles as the Argentine fans plead for the final whistle.
This is somehow very dramatic.... what a save!
Post update
Argentina 2-1 Australia
Oh my. Australia teenager Garang Kuol almost sends it to extra time. He swivels in the box and he's free, 10 yards out, but his shot is saved by Emiliano Martinez, who made himself big.
Post update
Argentina 2-1 Australia
Australia on the attack. Could they? An Argentina defender clears a cross. And again.
Post update
Argentina 2-1 Australia
Argentina just hoof the ball up field. They're so close.
Post update
Argentina 2-1 Australia
Pat Nevin
Former Scotland winger on BBC Radio 5 Live
In the last five minutes, maybe ten, Argentina have played like a team who can win the World Cup. When Messi has decided to turn it on, they have been fabulous.
Live Reporting
Emlyn Begley
All times stated are UK
Post update
FT: Argentina 2-1 Australia
Danny Murphy
Former England midfielder on BBC One
Deservedly so, Argentina march on and we get to see Messi again.
Post update
This was Garang Kuol's chance at the end of the game for Australia that nearly forced extra time...
This is a remarkable stat but Kuol has only played 388 minutes of senior football for club and country.
Triumph one end... tears the other
Argentina 2-1 Australia
Chris Bevan
BBC Sport at Ahmad Bin Ali Stadium, Qatar
Argentina's fans serenade their players at one end...
...while at the other, The Australia players say goodbye to their supporters.
Most of the stadium is celebrating and singing, apart from that tiny pocket of yellow.
Get Involved
#bbcfootball, via WhatsApp on 03301231826 or text 81111 (standard network charges apply)
Post update
FT: Argentina 2-1 Australia
The Netherlands have beaten African champions Senegal, Asian champions Qatar and North American champions USA at this World Cup.
Next up, South American champions Argentina.
Post update
FT: Argentina 2-1 Australia
Have a little watch of the highlights below if you didn't see the game.
Post update
FT: Argentina 2-1 Australia
Rio Ferdinand
Former England defender on BBC One
How is he doing this? He is embarrassing players with his head up. He's taking people on and is able to see the whole pitch, where people are.
He is phenomenal.
Post update
FT: Argentina 2-1 Australia
Lionel Messi was very good but I wonder if Rio got a tad carried away there.
Post update
FT: Argentina 2-1 Australia
Rio Ferdinand
Former England defender on BBC One
The best individual performance from a player at this World Cup.
It was almost God-like. I've not seen anything like this.
Post update
FT: Argentina 2-1 Australia
That would have been one of the great World Cup moments if Garang Kuol has scored there. He is joining Newcastle from Central Coast Mariners in January.
Kuol has only played 14 club games.
Post update
FT: Argentina 2-1 Australia
Pat Nevin
Former Scotland winger on BBC Radio 5 Live
Brilliant save by Martinez, he's come out and killed the angle. That's not a bad miss, that's a great save. Great goalkeeping. I didn't know if Australia would get another chance. They got it and they couldn't take it.
Post update
FT: Argentina 2-1 Australia
Argentina's defenders celebrated that save with Emiliano Martinez like he'd scored a goal.
Post update
FT: Argentina 2-1 Australia
Danny Murphy
Former England midfielder on BBC One
Would you believe it? Hits the target, it's a strong left arm.
The Australian dugout is disappointed. The euphoria of the Argentina players hugging Martinez.
FULL-TIME
Argentina 2-1 Australia
It's all over.
Argentina play the Netherlands on Friday for a place in the World Cup semi-finals.
Australia gave it a good go there but they're out.
Post update
Argentina 2-1 Australia
Andy Cryer
BBC Sport in Qatar
The scarves are waving, the fans singing, the feet jumping.
Ahmad bin Ali is a cauldron of noise.
Now the whistles as the Argentine fans plead for the final whistle.
This is somehow very dramatic.... what a save!
Post update
Argentina 2-1 Australia
Oh my. Australia teenager Garang Kuol almost sends it to extra time. He swivels in the box and he's free, 10 yards out, but his shot is saved by Emiliano Martinez, who made himself big.
Post update
Argentina 2-1 Australia
Australia on the attack. Could they? An Argentina defender clears a cross. And again.
Post update
Argentina 2-1 Australia
Argentina just hoof the ball up field. They're so close.
Post update
Argentina 2-1 Australia
Pat Nevin
Former Scotland winger on BBC Radio 5 Live
In the last five minutes, maybe ten, Argentina have played like a team who can win the World Cup. When Messi has decided to turn it on, they have been fabulous.
Post update
Argentina 2-1 Australia
Two minutes to go.