And that's that. Tottenham return to winning ways but Pochettino will be unhappy his side were unable to keep a clean sheet.
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And that's that. Tottenham return to winning ways but Pochettino will be unhappy his side were unable to keep a clean sheet.
GOAL! Tottenham 3-1 Southampton
Austin nets a consolation for Saints! The visitors deserved at least one goal this evening.
Three minutes will be added on here at Wembley.
Meanwhile, Oriol Romeu is introduced for the Saints.
SPURS SUB: A slight concern for Pochettino as Trippier, who is only returning from injury, limps his way off. Oliver Skipp is his replacement.
NO PENALTY! Spurs counter, with Alli slipping a pass into Rose. He falls under the challenge of Ward-Prowse but there is nothing doing from the referee Anthony Taylor.
Saints continue to probe but still there's no way through. Tottenham are happy with just the three goals and are sitting back, absorbing pressure.
There was a huge shock at Molineux this evening where Wolves defeated Chelsea 2-1, which, of course, is good news for Spurs. It's 2-2 between Man United and Arsenal, meaning Pochettino's side will move into third, as it stands.
Son is full of the joys after grabbing Tottenham's third of the evening.
SPURS SUB: Dele Alli comes on for Eriksen now.
ANOTHER SAVE! Lloris is on top form this evening! He throws himself to ground to push Austin's reverse shot wide of the far post.
DOUBLE SAVE! And still it won't go in for Saints! Hojberg fires one from 20 yards and Lloris can't hold it. The rebound falls to Ward-Prowse who has all of the net to aim for but Lloris makes a brilliant block.
SPURS SUB: Moussa Sissoko replaces Moura for the last 15 minutes or so.
MISS! The visitors work the corner routine well, playing it short and pulling the ball back to Targett who finds himself in space in the penalty area. The less said about the finish the better, though. He leans back and blazes the shot into the back of the stands. It sums things up for Southampton right now.
Southampton are enjoying a spell of pressure now and win their fourth corner of the game.
SAINTS SUB: Gabbiadini makes way for Charlie Austin.
Davis, the club captain, has to take more responsibility there. If he scores Southampton have something to fight for.
BLOCK! The ball falls perfectly for Davis who has to shoot from point-blank range, but instead opts to pull it back for Ward-Prowse. The defenders gather themselves to make the block.
Southampton have knocked the ball around well, at times, this evening, but their final touch has let them down.
Moura celebrates scoring Tottenham's second of the evening.
HOW DOES THAT NOT GO IN? Ward-Prowse fizzes in a wonderful free-kick delivery. It's begging to be bundled over the line by Yodhida but somehow Lloris reacts quickest and smothers it.
A dangerous corner delivery is fizzed into the heart of the Spurs penalty area - but there is no one there in red. It's cleared as far as Cedric who tries an ambitious shot from 30 yards and it ends up in row Z.
CROSSBAR! Almost a consolation for Southampton. Redmond whacks one from the left flank and he's denied only by the woodwork. Offensively, Saints have asked some questions of the hosts. Three individual mistakes are costing them.
Saints are crumbling. Hasenhuttl has a real job on his hands here.
GOAL! Tottenham 3-0 Southampton
What is Targett doing? All he has to do is clear the ball out for a throw-in. But he's closed down quickly by Kane who charges down the flank and picks out Son in the middle, leaving the South Korean with a simple tap-in.
Is there anyway back for the Saints? They haven't performed badly on the whole, but two lapses of concentration from corner kicks have left them with a mountain to climb.
GOAL! Tottenham 2-0 Southampton
MOURA! It's another cheap goal for the Saints to concede. A corner finds Moura whose first effort is blocked. But it falls kindly for the former PSG man and he makes no mistake with the second effort, volleying the ball in from close range.
SAVE! Tottenham win a free-kick on the edge of the box. Eriksen takes, he bends it around the wall, it's heading towards the bottom corner and McCarthy does well to parry it behind for a corner.
SAVE! Spurs win a corner almost immediately after the restart. Alderweireld meets it at the near post and guides his header at goal. McCarthy is backpeddling and does well to claw it away from danger.
The second-half is underway. It's Tottenham 1-0 Southampton.
Tottenham deservedly lead at the break through Harry Kane's ninth minute strike and are on course for another Wembley victory.
Saints new boss Ralph Hasenhuttl is watching on from the stands and won't be too discouraged by his side's performance, however.
There will be one additional minute played at the end of the first-half.
There is some pushing and shoving in the penalty box as the corner delivery comes in and the referee Taylor signals for a Southampton free-kick.
Spurs moving through the gears again as we approach the half-time whistle. Son wins a corner and the last thing Southampton will want to do is concede a second at this stage in the game.
SHOT! Eriksen catches a left-footed shot sweetly but it's straight at McCarthy from 25 yards. He spills it, however, but gathers at the second attempt.
Spurs win a corner and for the first time this evening it's swung in first-time. Trippier's delivery is hacked away at the near post, though.
This match has struck something of a lull. The pace, and quality, has dropped over the last five minutes or so.
GOAL UPDATE: It's currently 1-1 between Manchester United and Arsenal at Old Trafford. Martial cancelled out Mustafi's opener.
Kane hits the deck inside the box but referee Anthony Taylor is well placed to wave play on. There was no complaint from the Spurs star.
JUST WIDE! Spurs work another short corner. It's finally fizzed into the danger area, it's not the easiest of headers but Dier uses all of his neck muscles to direct it goalwards, but it spins just wide of goal.
SHOT! Southampton surrender possession and the hosts break immediately. Son leads the charge, weaving his way towards goal before unleashing a shot from the edge of the box. It's straight down the middle but McCarthy can only tip it over the bar.
SAVE! Kane tries to guide a low shot beyond McCarthy at his far post but he doesn't get enough pace or power into his effort and it's comfortable for the Saints goalkeeper.
That would have been a goal of the season contender, had that gone in. Great effort Hojberg.
SO CLOSE! Oh my, what an effort this is from Hojberg! He wraps his body around the ball and strikes a delicious first-time curler at goal from 20 yards. Lloris gets the slightest of touches to turn it onto the post! The rebound falls to Armstrong who inexplicably strikes it wide with the goal gaping. But he was offside anyway.
It's all Spurs at the moment. Kane has the ball in the net for the second time but he's just offside. Beautiful technique for the finish, though.
Spurs are hungry for a second. After a passage of beautiful one-touch passing in and around the Saints penalty area, the ball is eventually cut out and scrambled away from danger.
SHOT! An ambition one, to say the least. Moura pounces on a loose ball in midfield and looks up only to see McCarthy hovering around his 18-yard line. He tries to chip the Saints goalkeeper from the half-way line but doesn't get quite enough on it and it's an easy save for the shot-stopper.
GOAL UPDATE: Ruben Loftus-Cheek has put Chelsea ahead at Wolves.
Kane has now scored SEVEN goals in his last five Premier League games against the Saints.
Better from Southampton, but the flag is up. Armstrong slips through Gabbiadini and continues his run to meet the return pass before firing wide with the goal gaping. Armstrong's blushes are spared by the linesman's offside flag.
Hasenhuttl - you have a job on your hands. Woeful defending. They switched off and you can't allow Kane space like that.
GOAL! Tottenham 1-0 Southampton
KANE! Spurs take a short corner, the talisman wriggles himself free and makes a run to the near post to poke in Eriksen's driven cross from point-blank range. A poacher's finish.
A long ball over the top releases Kane but uncharacteristically for him his first touch lets him down.
SHOT! There's the first sight of goal for Saints. Redmond lines up Cedric for a shot on the channel and he fancies it from 20 yards but the ball drifts past the far post.
The right flank is proving profitable for Spurs. They're finding space out there. Again it's Son who is causing the problems, but he delivers a cross straight into the arms of McCarthy.
OFF THE POST! A warning for the Saints with only three minutes gone! Trippier heads Dier's long ball out of defence into Son's path and he tries a really clever first-time volley and is unfortunate to see it cannon off the woodwork.
Tottenham fell out of the top four following the defeat to Arsenal on Sunday, but can move up to third with victory this evening if other results go their way. Third-placed Chelsea are at Wolves while Arsenal, in fourth, are at Manchester United.
KICK-OFF! The game is underway at Wembley.
DID YOU KNOW? Southampton have won just three of their 19 Premier League visits to Tottenham, most recently in May 2016 when Steven Davies scored both of Southampton's goals.
Davies is preparing for his first, and final, game in charge of Saints.
"My role is to take the team on Wednesday," he said. "I don't see the point in trying to get too much into their heads.
"They're professional boys, and I like to think with their abilities there's nothing stopping them putting in a positive performance and hopefully a display that puts us in a positon to come away with something."
Pochettino is staying positive despite the defeat to Arsenal. He said: "We have dealt so well with the obstacles along the way and the squad continues to impress me as players come into the team to show their abilities. I am so proud of them."
The Argentine is also full of praise for his former club Southampton.
"I care a lot for Southampton... I have spoken with my family and I think it was one of the better periods in my life.
"We found some amazing people there, an amazing town and they provided us with everything to make us feel at home."
WHO IS RALPH HASENHUTTL?
The Austrian was appointed as the new Southampton boss today, after Mark Hughes was sacked on Monday.
Hasenhuttl has been out of work since leaving Leipzig in May, ending a two-year spell at the club.
The 51-year-old guided Leipzig to sixth in the German top flight last season but left after failing to agree a contract extension,
FOUR CHANGES FOR SAINTS
Steven Davis, James Ward-Prowse, Matt Targett and Manolo Gabbiadini come into the Saints line-up as Davies rings the changes from the side that drew 2-2 with Manchester United on Saturday.
Southampton have a point to make to their new manager.
FIVE CHANGES FOR SPURS
Pochettino makes five changes from the Spurs team defeated in the North London Derby.
Kieran Trippier returns from a groin injury, while Danny Rose, Toby Alderweireld, Harry Winks and Lucas Moura are restored to the starting XI.
Jan Vertonghen is banned following his red card at Arsenal, while Dele Alli is on the bench.
SOUTHAMPTON TEAM NEWS
Starting XI: McCarthy, Yoshida, Stephens, Cedric, Davis, Ward-Prowse, Targett, Hojberg, Armstrong, Gabbiadini, Redmond.
Subs: Gunn, Vestergaard, Hoedt, Austin, Romeu, Valery, Elyounoussi.
TOTTENHAM TEAM NEWS
Starting XI: Lloris, Trippier, Alderweireld, Foyth, Rose, Winks, Dier, Moura, Eriksen, Son, Kane.
Subs: Gazzaniga, Sissoko, Alli, Walker-Peters, Llorente, Davies, Aurier.
Hello and welcome to Eurosport's LIVE text commentary of the Premier League clash between Tottenham and Southampton at Wembley.
Ralph Hasenhuttl was appointed as new Saints boss earlier today and will be in the stands to watch the strugglers take on a Spurs team determined to bounce back after that 4-2 defeat to Arsenal on Sunday.
Can caretaker manager Kelvin Davies end a run of 10 matches without a win or will Mauricio Pochettino's side have too much for the visitors?
Kick-off is 8pm.