Iker Bravo cuts in on his left foot for Watford and has a shot blocked. It comes back to him on the edge of the area but he can only curl the second attempt well over the bar.

Half-chances at both ends as Odin Bailey fires wide of target with his left-peg for Pompey and Joseph Opoku does likewise for the visitors.

Finn Azaz fizzes one low and hard to the near post from the left for Southampton but Albion goalkeeper Max O'Leary is equal to it.

West Brom are straight up the other end and Isaac Price flashes one across the face of goal but it's got too much on it.

Proper game of football, this.

Watford are about eight minutes plus stoppage time away from a crucial three points for boss Alessio Dionisi. Can they hold on?

Joe Rankin-Costello and Millenic Alli are on for Harvey Knibbs and Danny McNamara for the hosts as they seek a leveller.

Southampton win a corner on the left and it's flicked on at the near post by James Bree. It loops towards the back stick and it's not too far away but there is no-one gambling on it for Saints.

Ruben Rodrigues goes into the book for the visitors after a tug back on Harvey Knibbs.

Big last 15 minutes or so to come.

This is getting heated. West Brom left-back Callum Styles brings down Kuryu Matsuki and goes into the book. The home support aren't happy about it and are letting the ref know.

Not sure Styles can have too many complaints, mind.

And now Southampton boss Tonda Eckert has been booked as well for complaining about something.

This one seems to be dying a bit now.

Jordan Ayew replaces Hamza Choudhury for Sheffield United.

I mentioned Pompey's bench earlier. Here it comes.

Josh Murphy, Abu Kamara and Thomas Waddingham are on with Ebou Adams, Marezi and Adrian Segecic making way.

Ryan Kavuma-McQueen remains on the bench too, for now.

Ross Stewart and Josh Key are on for the Swans who need a goal, quickly.

Million Manhoef is trying to put the icing on the cake for Stoke.

He cuts inside from the left and tries to smash one into the corner but his effort is wide of the mark.

Great atmosphere at The Hawthorns now. West Brom are pushing to retake the lead and they almost do...

Callum Styles slams one on across the face of goal after a well-worked corner by Albion but Jack Stephens is there once again to make a crucial clearance for Saints.

Rhian Brewster replaces Henrik Meister up front for Derby - the Dane has hardly had a kick tonight.

Zan Vipotnik is on for the visitors, replacing Adam Idah, and has already teed up Elijah Just to fire over the bar from outside the box,

Down the other end go Pompey and Tyrese Shade nods the ball into the path of Regan Poole whose low shot is saved down to his left by Lawrence Vigouroux.

West Brom are almost back in front but for some excellent defending to deny Jimmy-Jay Morgan.

Morgan gets a shot away inside the area and Daniel Peretz is beaten but Jack Stephens is back there to make a vital block for Saints.

More changes for Norwich.

Oscar Schwartau is back from injury to replace Mathias Kvistgaarden and Ante Crnac is also on with Anthony Musaba heading off.

Adam Blackmore
BBC Radio Solent commentator

It's been a great response from Southampton.

They don't want to shrink into themselves again now. They just need to keep doing what they've been doing for the first 10 minutes of this half.

Birmingham's Alex Cochrane joins the yellow card club.

From the free kick, Jake Cooper heads into the waiting arms of Ryan Allsop.