Championship leaders Leicester beat 10-man QPR 2-1
Foxes have won 39 points out of possible 42
Second-placed Ipswich come from behind to beat Plymouth
Also wins for Cardiff, Hull, Stoke & Sunderland
Leeds beat Huddersfield & Southampton beat Birmingham in early kick-offs
League One leaders Portsmouth come from 2-0 down to beat Reading
League Two leaders Stockport get 10th straight league win
Adam Armstrong (86 mins)
Image source, Getty ImagesThe cross comes in from the nearside and is headed down by Sam Edozie near the back post.
The ball lands at the feet of Adam Armstrong in the middle of the box who volleys on the turn and into the corner of the Birmingham net.
That is his eighth goal this season and his eighth goal against Blues. Game over.
Southampton 2-1 Birmingham
Saints make their third and fourth changes.
Stuart Armstrong and Will Smallbone come off and can put their feet up.
Sam Edozie and Shea Charles are on.
Leeds 4-1 Huddersfield
Matt Glennon
Former Huddersfield keeper on BBC Radio Leeds
It's something to celebrate at least on what has been a difficult day for Huddersfield. Michael Helik is in good form infront of goal. That's his fourth of the season.
Southampton 2-1 Birmingham
Just over 10 minutes of regular time left at St Mary's.
Following a mad few minutes after that Birmingham goal the match has slowed right down.
Saints have recovered well. Do the Blues have enough in the tank for an equaliser?
Michal Helik (70 mins)
Illan Meslier makes a mess of a Sorba Thomas shot that moves in the air.
Michal Helik is there to pounce as Meslier fumbles his save and Huddersfield have a goal back.
That came from absolutely nowhere.
Southampton 2-1 Birmingham
Kamaldeen Sulemana is coming off for Southampton and he is replaced by Ryan Fraser - who is affectionally known as 'Wee man'
Leeds 4-0 Huddersfield
Huddersfield have another penalty appeal turned down.
This time it's Liam Cooper who appears to catch Delano Burgzorg's back leg.
Southampton 2-1 Birmingham
Southampton make their first change of the match.
Carlos Alcaraz - who scored the second goal - is off and Joe Aribo is on.
The rain has stopped and sun is shining down again on to the pitch at St Mary's.
Just under 20 minutes of regular time left.
Leeds 4-0 Huddersfield
Joe Rodon goes down and seems to be struggling with a left leg issue for Leeds.
He clearly can't continue and Leeds boss Daniel Farke is quick to call on Liam Cooper to replace him.
Southampton 2-1 Birmingham
Oliver Burke and Krystian Bielik are off for Birmingham.
Midfielder Gary Gardner and forward Scott Hogan are on.
Southampton 2-1 Birmingham
And breathe.
That was a frantic past few minutes.
The rain has stopped, the crowd have calmed a little and the play has slowed up.
Subs to come.
Leeds 4-0 Huddersfield
Leeds with their first two changes now.
Crysencio Summerville is not going to get his hat-trick today as he makes way for Wilfried Gnonto. Summerville gets a standing ovation for his first-half brace.
Sam Byram's day is also done, with Luke Ayling replacing him.
Southampton 2-1 Birmingham
The atmosphere has flipped at St Mary's.
Out of nowhere Birmingham look like a different team.
And it is absolutely hammering down with rain in Southampton as well which might not help the hosts.
Southampton 2-1 Birmingham
Adam Blackmore
BBC Radio Solent sports editor and Saints commentator
The game has opened up!
Hold on to your seats everybody I think we are in for a hair and scare this final half an hour.
Southampton 2-1 Birmingham
Birmingham have come to life and are on the front foot now.
Lukas Jutkiewicz with the ball on the nearside edge of the Southampton box fancies a shot and fires a low stinger on goal.
It's saved by the Saints keeper Gavin Bazunu with his legs.
Leeds 4-0 Huddersfield
Leeds United are having some joy down the right side early in the second half.
The hosts had run riot on the left in the first 45 minutes, so they have changed it up to continue to terrorise Terriers
Jay Stansfield (59 mins)
With his first involvement since coming on Jay Stansfield scores Birmingham's first goal of the Wayne Rooney era.
Blues keeper John Ruddy launches the ball down the field and it is headed down for Stansfield who fires off a superb strike into the top corner, with his FIRST touch!
Talk about impact player! That is the Fulham loanee's fourth goal of the Championship season.
Image source, Getty ImagesSouthampton 2-0 Birmingham
Birmingham's Siriki Dembele comes off and Jay Stansfield is on.
Leeds 4-0 Huddersfield
Tom Lees is the latest Huddersfield man to be booked.
He goes through Dan James. Treatment like that is just about the only way James is being stopped today.
Southampton 2-0 Birmingham
We've got two players down in midfield.
Southampton's Kyle Walker-Peters and Birmingham's Krystian Bielik following a sliding scissor tackle from Bielik.
Walker-Peters is up and walking.
Bielik is still down.