Joe Gomez is standing and on the side of the pitch. He should be able to get through to half time when Liverpool will assess him.

Joe Gomez goes down awkwardly on his ankle as he tussles for the ball and that looks painful. He's receiving some treatment but Jurgen Klopp might be forced into a change here.

Adam Lallana
Ex-Liverpool and Southampton midfielder on BBC Radio 5 Live

Klopp will be delighted with how Liverpool are playing. They're showing all the right signs. Hopefully they can keep progressing and have a chance or two before the break.

Southampton survive as they give the ball away just outside their own box, Roberto Firmino plays in Harvey Elliott but his cross is blocked.

Joe Gomez puts in another cross but this one isn't as good as the one a few minutes ago as it sails over the bar.

Southampton have pretty much everyone back in the box as Liverpool keep up the pressure in pursuit of a second goal before half time.

The Saints aren't even looking like catching their opponents on the break anymore. Not sure they can keep this up for the remainder of the game without conceding again.

Joe Gomez puts the ball into a dangerous area from the right and Roberto Firmino reads it well as he strides across the box to meet it but Alex McCarthy just gets there first.

Karen Carney
Former England midfielder on BBC Radio 5 Live

Southampton have been rocked since the goal. It's all Liverpool. Southampton are trying to play out not looking over the shoulders, and Milner is counter-pressing. Southampton need to reset and regroup.

Phil McNulty
BBC Sport chief football writer at St. Mary's

Liverpoool are firmly in control of this game and threatening a second goal. Roberto Firmino is taking up some lovely positions and there has been little or no action around Alisson's goal since Nathan Redmond's strike.

Roberto Firmino, who has been excellent tonight, turns on the edge of the area and goes for goal but the ball flies over.

It is just constant pressure from the visitors now, however.

James Milner drives in a cross and it is a bit awkward for Takumi Minamino, who flicks high and wide of goal.

Roberto Firmino is onto Harvey Elliott's cross in a flash and his cut back across the area is cleared over his own goal by James Ward-Prowse.

All Liverpool now.

Liverpool win a couple of corners in quick succession, the second of which is played short before James Milner lifts the ball into the area but Alex McCarthy catches.

Dotify: That Minamino goal was reminiscent of David Ngog vs Arsenal!! Game on Liverpool!!

Josh Earl: what a finish from Minamino. Emlhatic.

Ken: 1-9 incoming.

Image source, Getty Images

Southampton's goal is under real pressure now as Liverpool look to get ahead.

Lyanco defends well to stop Diogo Jota getting connection inside the box before Alex McCarthy has to stretch to push away James Milner's strike.

Adam Lallana
Ex-Liverpool and Southampton midfielder on BBC Radio 5 Live

What a finish. It's not easy. It's a massive goal.

Southampton sat into the 4-4-2 and Liverpool gradually got a foothold. They've got their goal and will look to add to that in the first half.

Karen Carney
Former England midfielder on BBC Radio 5 Live

That's what quality does. You switch off for a second, I didn't even see it coming. It's a really good first touch, the second touch was a tidy one which kept him away and set him up. Brilliant finish, power into the top corner.