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Saudi Arabia would progress to the last 16 with a win
A Mexico win would see them through if Poland beat Argentina
If that games finishes in a draw or Argentina win, Mexico would need to win by at least four goals
Poland 0-1 Argentina
Poland almost respond immediately!
A free-kick is swung into the box and met by Kamil Glik, but his glanced header goes just wide. They need more of that. Much more of that.
Henry Martin (47 mins)
Huge.
Mexico have a corner and Cesar Montes flicks it on at the near post with Henry Martin sweeping it in from six yards out.
Image source, Getty ImagesSaudi Arabia 0-0 Mexico
Both teams are still out as things stand.
Mexico are right on the attack though with Saudi keeper Mohammed Al Owais making a couple of stops.
Poland 0-1 Argentina
Danny Murphy
Former England midfielder on BBC One
Just what the game needed, just what Argentina needed.
Mac Allister decides he had to keep it low and get his body over it. He doesn't hit it sweetly but it doesn't matter.
This place has erupted. It's no more than Argentina deserve. It was too easy to get in down the right hand side. This is great for the game.
Image source, Getty ImagesPoland 0-1 Argentina
Now Poland have a job on their hands!
They were second best in the first half. Barely able to get out of their half.
They are still going through as it stands but they are vulnerable. Very vulnerable.
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Steve: You wait decades for a Brighton player to score at a World Cup, now we've had two in two days!
Saudi Arabia 0-0 Mexico
Mexico bring on Uriel Antuna for Alexis Vega at the start of the second half.
Alexis Mac Allister
That didn't take long!
What a time to score your first international goal. Brighton's Alexis Mac Allister is in space in the Poland box to meet Nahuel Molina's cross. He scuffs it but the ball dribbles into the far bottom corner.
Poland 0-0 Argentina
Poland have made changes at the break. They had to. They were a sitting duck.
Michal Skoras and Jakub Kaminski are on.
No goals yet. Surely somebody has to put their hand up and claim Group C?!
We are back under way.
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Adesola: Half time - Szczesny 0-0 Argentina
Will: Poland look well out of their depth. All well and good having Lewandowski but he doesn't get near the ball!
HT: Poland 0-0 Argentina
Rio Ferdinand
Former England defender on BBC One
The penalty decision is disgraceful. This isn't what VAR has been brought in for. He's flicked his eyelash for starters and the fact that the ref goes over to look at it. I think that's an outrage decision that has been made here. He barely touches him.
HT: Poland 0-0 Argentina
Since 1966, no side has had more shots on target in the first half of a World Cup game without scoring than Argentina against Poland today (seven shots on target).
HT: Poland 0-0 Argentina
Pablo Zabaleta
Ex- Man City and Argentina defender on BBC One
Great for Szczesny because it was a great save. He has been really good in this World Cup, great goalkeeper for Poland.
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Never in a month of Sundays is that a penalty and giving it sets a dangerous precedent. Keepers will be concerned about going for the ball in the air for fear of VAR ruling against them for doing what they should be doing.
Steven
VAR has frustrated me over the years. But that decision has actually left me furious, and I don't even care who wins this game. If that's the direction the sport is heading, then at some point we'll all stop following.
Dale
HT: Poland 0-0 Argentina
Alan Shearer
Former England striker on BBC One
Argentina have had most of the possession, still created most of the chances but they have been very sloppy. Poland have offered nothing, no support into Lewandowski. All they've done is kick and hope and hope that he will hold it up or that someone will run off him. There is work to be done here.
HT: Poland 0-0 Argentina
The defining moment of that first half...
Poland 0-0 Argentina
Phil McNulty
BBC Sport chief football writer at Stadium 974
Argentina much more like the team that was touted at potential winners before the World Cup but struggling to make the breakthrough, with Poland keeper Wojciech Szczesny outstanding, especially when saving Lionel Messis penalty.
There is much more intensity about Argentina and little has been seen of Poland's master marksman Robert Lewandowski.
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John: Poland don't deserve much out of that half but they didn't deserve that atrocious decision either.
Richard: You get the sense that Poland have been planning for a draw since the groups were announced! Dangerous game to play.
A reminder that, as it stands, Poland will top Group C - thanks to Wojciech Szczesny's penalty save from Lionel Messi.
However, you suspect they will need to show more attacking intent in the second half against Argentina.
Saudi Arabia and Mexico both firmly in the mix to progress too.
Image source, BBC Sport