Five minutes added on.

Oh USA are so close to another. Tyler Adams plays a lovely ball out the right to Josh Sargent. His give-and-go with Timothy Weah doesn't quite work. They were one ball away from a clear one on one.

Chelsea's Christian Pulisic has been involved in both USA goals at this World Cup. He assisted Timothy Weah against Wales.

Christian Pulisic is indeed back on. A boost for the US. Well, he's still hobbling. They must be trying to get him through to the break.

Emma Sanders
BBC Sport at Al Thumama Stadium

USA boss Gregg Berhalter has just shaken his finger at the substitutes warming up to tell them Christian Pulisic can carry on and they don't need to get ready.

Danny Murphy
Former England midfielder on BBC Two

Pulisic is on his feet walking but he doesn't look comfortable.

USA midfielder Tyler Adams is booked for a foul on fellow captain Ehsan Hajisafi.

The game is back under way. USA have 10 men for down, Christian Pulisic isn't back on.

An immediate chance for a second as Josh Sargent blasts a ball across the danger zone - where Pulisic was a couple of minutes ago. Nobody is there now.

Danny Murphy
Former England midfielder on BBC Two

The clash looked innocuous but Pulisic is really struggling.

Emma Sanders
BBC Sport at Al Thumama Stadium

The USA fans are doing a version of the Iceland clap and are waving their flags to our right but the celebrations were a little muted than usual because goalscorer Christian Pulisic has been down for a few minutes receiving treatment.

Danny Murphy
Former England midfielder on BBC Two

Dest with a great moment of quality, great header across and Pulisic finishes. Easy finish for a man of his quality. USA have deserved it, they really have. Dest has been positive, creative, tenacious, absolutely outstanding from the full-back.

Image source, Getty Images

All change in Group B.

USA will go through in second place if things remain as they are, with Iran going home.

Image source, BBC Sport

Christian Pulisic is getting treatment in the Iran goal. He was clattered by Iran keeper Alireza Beyranvand in the follow-through after finding the net with his shot.

Image source, Getty Images

As things stand, the USA are through with England and Iran are out with Wales.

The horns are very annoying. Almost, dare I say it, vuvuzela levels.

Emma Sanders
BBC Sport at Al Thumama Stadium

It's hard to tell whether there has been a change in mood from the supporters in the stadium as the USA build more pressure.

There's a constant sound of horns being blown by the Iran fans and therefore very little else can be heard. They blow even more intensely when the USA have a corner!

The American fans have been on their feet at the far end for most of the match but you can't hear them among the relentless horn blowings.

Luckily for Iran, Mehdi Taremi is able to telegraph and intercept a USA corner which is cut back for Sergino Dest, who would have been in space otherwise.

Taremi helps Iran up the pitch.

Danny Murphy
Former England midfielder on BBC Two

Dest is a bundle of energy, he is so positive with his runs forward.

Image source, Getty Images

You can see the USA shot positions in purple here.

You can't see the Iran shot locations, because there have not been any.

Image source, Opta