Nathan Jones goes to his bench for the first time this afternoon as goalscorer Joe Rankin-Costello and Luke Chambers are withdrawn.

The Addicks boss sends on Ibrahim Fullah and Matty Godden as they look to get back on track after being pegged back in the first half.

No changes at the break from Tonda Eckert and no real change to the performance for Saints at St Mary's.

Derby looking comfortable for their lead so far and you wonder when Eckert might look to his bench.

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Tommy Conway's ball across the face of goal is sliced at by Portsmouth's Jordan Williams and goes agonisingly wide of the post.

Pompey's goal is starting to lead a charmed life.

Oxford keeper Jamie Cumming is called on for the first real time this afternoon with a good save to deny Nestory Irankunda's drive from just outside the box, tipping it over the bar.

Will Lankshear has seen some muted appeals for a penalty under a right-wing cross waved away at the other end.

There are cheers in the away end...

They think they've taken the lead but the joy is cut short as they realise Daniel Jebbison has just rippled the side netting from close range.

Close but not quite for the Lilywhites.

The ball lands at the feet of Riley McGree but the midfielder's effort is superbly blocked by some more resolute Portsmouth defending.

Boy, what Boro would do for a goal right now.

Neil Maddison
Former Middlesbrough midfielder on BBC Radio Tees

I've got to say he has to go for goal there.

To be fair, I know what he's trying to do because if David Strelec gets it, it's an open goal.

Riley McGree snatched as his shot as well.

Decent chance for the visitors early in the second half as Zan Vipotnik pulls the ball back into the box for Melker Widell but he leans back as he strikes it and the ball flies well over Jakub Stolarczyk's crossbar.

Big chance for Boro early in the second half.

David Strelec's threaded through ball finds Riley McGree but his low effort is well kept out by the feet of Pompey keeper Nicolas Schmid.

Double change at the break by Boro boss Kim Hellberg.

Sontje Hansen and Luke Ayling are on for the second period, replacing Matt Targett and Jeremy Sarmiento.

Here we go then, into the final 45 minutes.

How different will the Championship table look an hour from now?

Let's find out...

Jo Tessem
Ex-Southampton midfielder on BBC Radio Solent

Derby have been physical, smart, and winning the second balls, that's underrated in football, they've been really physical in the way they've played.

We need to be braver, Leo Scienza needs to be braver taking on Joe Ward and Tom Fellows, the same on the other side.

Coventry City

Coventry City boss Frank Lampard spoke to BBC CWR after their goalless draw with Sheffield Wednesday held off the promotion party for at least another week.

"We created enough to score but we're not quite at our sharpest at the top of the pitch.

"It's normal to feel frustrated but we have to temper that with where we are and the bigger picture.

"We lacked zip around the top end of the pitch. The counter-pressing and speed of our reactions was slightly down.

"The players are learning and living with the expectancy over when you can get promoted for a club that hasn't been there for a long time. I get that and you can't discount them.

"We've got four games to go, we know what we've got to do. It's in our hands and we have to do it."

Neil Maddison
Former Middlesbrough midfielder on BBC Radio Tees

The injection of life into this game is more important, the importance of three points is there, right now you're looking at this and thinking they're gone in the top two race. It's so slow and flat.

It's far too slow, there's no runner in behind or down the sides, everything is in front of Portsmouth. It's so flat, it's like watching a training game, the afternoon is passing us by.

We're a team in a good position, three points here would cement the position, I'd be very surprised if there's no changes made.

So far a happy return to the bet365 Stadium for Michael O'Neill as Rovers seek to pull further away from danger at the bottom of the table.

Adam Forshaw's angled finish from Ryan Alebisou's pass on 21 minutes is the difference, though Sean McLouglin had to clear off the line from Sam Gallagher at the other end.

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Some nice football from Southampton but it's the visitors who go into the break ahead through Carlton Morris's goal.

A big 45 minutes needed from Saints if they're going to extend their unbeaten run.

As it stands, the Rams move level with their hosts on 66 points.

Myles Peart-Harris' close-range finish from a Cameron Brannagan free-kick is the difference at the break.

As things stand the U's are out of the drop-zone but they will feel they need a second goal as the Hornets have looked dangerous on the break and have plenty of players capable of conjuring a breakthrough.