In these divided times we've found something else to separate us all...

Danny Murphy
Former Liverpool and England midfielder on BBC One

Derby defender Fikayo Tomori is very calm, he's got good pace, is a good passer and reads the game well.

I've been really impressed with him this evening. I don't think he'd look out of place in the Chelsea side.

Half an hour to go! Let's have some goals lads, come on.

Image source, Reuters

Right, as if the guys running News at Ten didn't have enough on their plate tonight, this game is just over half an hour away from going into extra-time.

Oh - and this...

They do indeed. Although Derby captain Richard Keogh does now have a header on target from a corner but that's an easy save for Angus Gunn. More Saints pressure at the other end though.

Danny Murphy
Former Liverpool and England midfielder on BBC One

I think Southampton look so much more comfortable with four at the back.

It's a better game in the second half, they (the two sides) are more matched up, there's more intensity.

Another reminder that we could have extra time and penalties tonight. Surely not...

Southampton having a good spell now but a flowing move ends with Mohamed Elyounoussi having a cross deflected away.

Image source, AFP

Great chance for the Saints as Shane Long plays in Nathan Redmond - he gets a shot away which is again well saved by Kelle Roos but the offside flag was already up...

Danny Murphy
Former Liverpool and England midfielder on BBC One

For the majority of that first half you'd say Derby were the Premier League team but these days, we all know that possession-based football doesn't always win you matches.

DCI Le Tiss. He gets results.

Derby come forwards now and Mason Mount fires off a shot from 25 yards which has Angus Gunn scrambling - but it's wide.

Image source, Getty Images

Duncan Gates: Matt le Tissier has aged into a very competent-looking detective sergeant

BBC One

Southampton legend Matt Le Tissier on BBC One: "I expect to see some more Southampton pressure. I thought Derby dominated the end of the first half, had plenty of possession, and the goal being chalked off was unfortunate for them, but I expect us to be dominant now."

Stuart Armstrong, who missed a great chance from just a few yards out in the first half, tries his luck from 25 yards and skims an effort over the top. Got hold of that one!

Francis Benali
Former Southampton defender on BBC One

If Southampton can keep that high press, keep moving the ball quickly through the lines and playing that high tempo, things should be good for the side.

And away we go.

Nathan Redmond is coming on at half-time for Tyreke Johnson - Shane Long is obviously fit enough to play on.

Here come the sides...

Jermaine Jenas
Former England and Tottenham midfielder on BBC One

We knew Southampton were going to do this high press so what does Frank Lampard do, ask his team to give in and go long because there's less risk with that?

I'm glad he didn't because he believes in his team and their ability. They stayed brave, they started to get some joy and they grew in confidence because they started to beat the press.

FAO James Ash [20:16] - my wife has been in touch to tell me there was a Tyreke in Sister Sister. Tyreke Scott...

Don't blow the BBC Sport budget Robbie!