Jose Mourinho on the touchline, kicking every ball and clapping every United challenge.

Zlatan Ibrahimovic holds the ball up and releases Marcus Rashford, whose low shot is kept out well by Fraser Forster.

Alan Shearer
Ex-Southampton striker on BBC Radio 5 live

Southampton are looking to try and win this - bringing Long on.  

Nice touch from Mourinho as well there - shaking Gabbiadini's hand when he came off then - not sure he meant it though... 

Image source, Reuters

United manage to get the corner away, but different problems to deal with.

Star man Manolo Gabbiadini, who scored three but only two were allowed to stand, gets a huge ovation as he comes off the pitch.

Shane Long enters.

Image source, Reuters

Southampton threatening again, they look the more likely to get the winner.

Nathan Redmond's low shot is deflected away for another corner.

Into the last 10 minutes.

The game is getting stretched now.

End-to-end action.

Where will the mistake come? Who can make themselves a Wembley hero?

Image source, Reuters

We still await the arrival of Wayne Rooney. Being saved for penalties?

Alan Shearer
Ex-Southampton striker on BBC Radio 5 live

Like for like change for Manchester United but I'm slightly surprised with Tadic coming off for Southampton as he has been the one causing all sorts of trouble. 

A change for each side.

United goalscorer Jesse Lingard makes way for Marcus Rashford, while Sofiane Boufal enters in place of Dusan Tadic.

13 minutes to play before extra-time and penalties.

Image source, Reuters

Alan Shearer
Ex-Southampton striker on BBC Radio 5 live

For the last two minutes or so it's been noticeable Pogba has gotten further forward and linking up well with Ibrahimovic...

They are looking dangerous. Much much better from Manchester United. 

United keep possession from the corner, moving it from right to left.

It falls inside the area for Jesse Lingard, eight yards out but smashes his shot over the bar.

That was the chance.

Image source, Reuters

Paul Pogba getting more involved now and bulldozes his way through. He exchanges passes with best buddy Zlatan Ibrahimovic before earning a corner.

This time the wall stands firm and Zlatan Ibrahimovic strikes straight at the bricks and mortar.

Paul Pogba, nice of him to turn up, is brought down on the edge of the box by Dusan Tadic.

Zlatan Ibrahimovic over it again.

What outcome this time?

United just cannot pick up James Ward-Prowse, who has had a superb game.

The Southampton youngster gets forward again, but his cutback into the box is nicked off the feet of Nathan Redmond by Antonio Valencia.

United have a free-kick which is cut back to the edge of the box by Ander Herrera, but Michael Carrick's low shot is blocked by the Southampton defence.

Goal saving tackle.

Southampton fail to close down Anthony Martial, who runs past around four defenders.

He pokes it through to Jesse Lingard, looking for his fourth Wembley goal, but Maya Yoshida jumps in in the nick of time to clear the ball.

Brilliant from the Japanese player.

Image source, Reuters

United have to scramble to clear a Southampton free-kick into the box, which was knocked down by Maya Yoshida.

That backline has been run ragged today.

No Wayne Rooney yet for Manchester United, but more Southampton pressure to deal with.

Image source, Reuters

Alan Shearer
Ex-Southampton striker on BBC Radio 5 live

Manchester United have not started this half at all. They have lost every tackle, they've lost every header. They cannot keep this Southampton side down. 

Just looking at Mourinho down on the touchline who is talking to Wayne Rooney who has his tracksuit bottoms off... Is he going to bring him on?