Postpublished at 73 mins
Iran 0-1 USA
Just two chances, both off target, for Iran all night. It's not really good enough for a team who need a result to go through.
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USA to face Netherlands in last 16 after finishing second in Group B behind England
RESULT: Iran 0-1 USA - Christian Pulisic scores winner in first half
A draw would mean USA are eliminated and Iran would be too if Wales beat England
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Emlyn Begley
Iran 0-1 USA
Just two chances, both off target, for Iran all night. It's not really good enough for a team who need a result to go through.
Iran 0-1 USA
There has been just one shot on target in the second half.
Iran 0-1 USA
Iran bring on Mehdi Torabi and Abolfazl Jalali for Ahmad Noorollahi and captain Ehsan Hajisafi.
Iran 0-1 USA
Danny Murphy
Former England midfielder on BBC Two
Ezatolahi got some fizz and whip and dip on that, that was a lovely strike from some distance. It doesn't come down quickly enough.
Iran 0-1 USA
Rare Iran chance as Saeid Ezatolahi blasts over from 25 yards.
Iran 0-1 USA
Danny Murphy
Former England midfielder on BBC Two
Musah should have gone with more power.
Iran 0-1 USA
Yunus Musah's free-kick sails over the bar. He doesn't get it down at all.
No, no, no, says Danny Murphy.
Iran 0-1 USA
I said this free-kick was 35 yards out but actually it's just outside the box. Proper chance.
England are now 3-0 up against Wales, Marcus Rashford with his second of the game.
That means Iran would just need a point.
Here is how it currently stands in Group B.
Iran 0-1 USA
Iran's Ramin Rezaeian puts his arms round Brenden Aaronson and handles the ball. Free-kick to the USA about 35 yards out.
Iran 0-1 USA
USA bring on Kellyn Acosta for Weston McKennie in midfield. The Juventus player looked in a bit of discomfort.
Iran 0-1 USA
This wouldn't have counted and Iran striker Saman Ghoddos will probably be relived.
He's in space about 12 yards out and scuffs his shot wide of the far post.
But there'd been a foul in the build-up so it doesn't count as a wasted chance.
Iran 0-1 USA
Iran defender Ramin Rezaeian is screaming in pain after Antonee Robinson catches him with his studs by accident.
After a few seconds, he's back on his feet and OK.
Iran 0-1 USA
Danny Murphy
Former England midfielder on BBC Two
It's that right side if anywhere where Iran are going to get some joy.
Iran 0-1 USA
Iran's Ramin Rezaeian has a cross cleared and Timothy Weah does well to get the Americans 60 yards up the pitch.
Iran 0-1 USA
The USA are within half an hour of the knockout stages. Iran are one goal away from taking that place instead.
Iran 0-1 USA
Danny Murphy
Former England midfielder on BBC Two
A lot of these lads for USA haven't had tournament experience, it's going to be interesting to see how they cope with this as the second half carries on and Iran get more desperate.
Iran 0-1 USA
Oh Timothy Weah. He's quite hit and miss. He beats a defender and then runs the ball behind the line for a goal-kick.
He's the best son of a current serving African president I've ever seen to be fair.
Iran 0-1 USA
Brenden Aaronson's next corner is cleared.
Iran 0-1 USA
Shaimaa Khalil
BBC News in Qatar
Loud almost deafening cheers and chants - The roars of Iran fans fill the stadium at every attempt of their team to fine the US net which haven't been many. Their cheers almost as relentless as the USA's pressure on their team.