KICK-OFFpublished at 46 mins
Argentina 1-0 Australia
The second half begins.
Can Australia come back to stun Argentina or will Lionel Messi's World Cup dream stay alive for another six days at least?
Use play icon at top of the page to watch live coverage from the Ahmad bin Ali Stadium in Al Rayyan, Qatar
FT: Argentina 2-1 Australia - Messi opens scoring & Alvarez doubles lead; Goodwin pulls one back
Lionel Messi was playing 1,000th career game and 100th as Argentina captain
Argentina will face Netherlands, who beat USA earlier, in quarter-finals
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Emlyn Begley
Argentina 1-0 Australia
The second half begins.
Can Australia come back to stun Argentina or will Lionel Messi's World Cup dream stay alive for another six days at least?
Argentina 1-0 Australia
Messi is two years younger to be fair.
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SuperSpoonerman: Messi's twilight years in football seem to be going a lot better than Ronaldo's
HT: Argentina 1-0 Australia
Mark Schwarzer
Former Australia keeper on BBC One
We switched off slightly, there was half a chance and Messi's brilliance shone. He literally passed the ball into the back of the net.
Argentina 1-0 Australia
The expected goals tally is 0.06-0.07. Argentina had two shots to Australia's one - and neither keeper has made a save yet.
Argentina 1-0 Australia
Argentina have lost only two World Cup matches when they have been ahead at half-time.
The first was in 1930 - the final against Uruguay - and the second was... just over a week ago, against Saudi Arabia.
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Pete: Just too easy for him isn’t it
HT: Argentina 1-0 Australia
Alan Shearer
Former England striker on BBC One
Australia made it difficult, that was the game plan to frustrate and that's what they were.
It was always going to be a piece of brilliance and that's exactly what it was.
HT: Argentina 1-0 Australia
Mile Jedinak
Former Australia captain on BBC Radio 5 Live
Conceding the goal in the manner we did more so than the man who scored it, we know his ability. I just think Behich and Messi have the little tussle beforehand it's just a lapse in concentration and a rash decision which allows Argentina in.
Australia will take heart from the way they played. Argentina have played a little bit within themselves and rightly so and Australia have got to pick their opportunities now and do it more frequently in this second half.
Argentina 1-0 Australia
Lionel Messi has scored nine World Cup goals, taking him over Diego Maradona and Guillermo Stabile (eight each).
Only Gabriel Batistuta - on 10 - has scored more.
HT: Argentina 1-0 Australia
Rio Ferdinand
Former England defender on BBC One
Australia must be really disappointed the work they put in.
But when Messi is on the pitch, you can set up how you like, he'll find a way.
HT: Argentina 1-0 Australia
Pablo Zabaleta
Ex-Man City and Argentina defender on BBC One
Pass the ball to Messi, that's all you need to do!
It was beautiful combination play in the box to find Messi and it was the perfect finish.
Argentina 1-0 Australia
The half-time whistle goes and it's Lionel Messi 1-0 Australia. The difference in an otherwise even half.
Wait until Andy discovers streaming services.
Argentina 1-0 Australia
Andy Cryer
BBC Sport in Qatar
It's party mood for Argentina as once again La Mosca's 'Muchachos, Ahora Nos Volvimos a Ilusionar' rings out around the stadium.
Where can I buy this tune? Not that I need to, it's very much in my head now.
Argentina 1-0 Australia
Our university five-a-side team had a guy who played for Burscough and Marine in non-league football and I can confirm he was just miles better than everyone else.
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That had an air of a Sunday League game in which the one good player in it said; I'm going to score now and there's nothing you can do to stop me.
James, Sheffield
Argentina 1-0 Australia
Danny Murphy
Former England midfielder on BBC One
They've done alright Australia, they haven't had many chances but they have contained Argentina really well.
At 1-0 you are still in it. That's the message I would be saying at half-time if they can get to that.
Argentina 1-0 Australia
Mat Ryan is almost caught out by Julian Alvarez but deals with it. Two minutes added on.
Argentina 1-0 Australia
Lionel Messi has now scored 13 goals in his last eight matches for Argentina.