Barclays Premier League as it happened: Chelsea 1-1 Southampton - Manchester United 3-0 Tottenham

Everton's emphatic win opens up a six-point gap between them and the relegation zone with nine games remaining.

Newcastle, who have now suffered three defeats in their last four league games, remain drifting in mid-table as their season predictably fades into the usual mediocrity.

That's it from us, good night.

Manchester United eased off somewhat after the break, but that was still as impressive as anything we have seen from them over the past two seasons and certainly the best first-half of Van Gaal's reign.

The victory keeps the Red Devils in fourth, but they are now just one point behind Arsenal and just two adrift of second-place Manchester City. If they can keep up that kind of form, a runners-up spot behind Chelsea is a very realistic target indeed.

Tottenham, meanwhile, remain in seventh after being overtaken by Southampton earlier today and are now six points behind United in their quest for Champions League qualification.

So, two extremely one-sides victories to round off the weekend as Everton punish 10-man Newcastle and Manchester United brush aside Tottenham with consummate ease.

Full-time scores

Manchester United 3-0 Tottenham

Everton 3-0 Newcastle

Everton round off a thoroughly pleasing afternoon's work with a third goal in injury time. Barkley neatly finishes off a break led by Chelsea loanee Christian Atsu.

Goal: Everton 3-0 Newcastle (Ross Barkley)

That 89th-minute effort from Kane was Tottenham's first shot on target. I think that particular stat just about sums up how wretched this afternoon has been for Pochettino's side.

A late chance for Kane but the prospective England forward is denied by the legs of De Gea.

Another Manchester United goalscorer makes way as Carrick is replaced by Rafael. This will be the fiery right-back's first top-flight appearance of 2015.

There have been one or two rumours regarding Pereira's future that have circulated in recent months, so Manchester United fans will be presumably hoping that an increased exposure to first-team football may help convince him to stay put.

Mata, meanwhile, showed Van Gaal exactly what he has been persistently overlooking of late with a brilliant display.

Falcao now joins the party in place of Fellaini.

It's just not happening for Tottenham and even one goal looks beyond them as we head into the final 15 minutes. Emmanuel Adebayor replaces Chadli.

Manchester United hand a Premier League debut to Belgian-born Brazilian midfielder Andreas Pereira, who replaces the excellent Juan Mata.

Newcastle's hopes of mounting a comeback are dealt a potentially fatal blow as captain Coloccini is shown a straight red card for a bad challenge on Lennon.

Tottenham are labouring in search of a consolation goal without much success. Erik Lamela is on for Ryan Mason.

Red card: Fabricio Coloccini (Newcastle)

Everton double their advantage from the penalty spot through Lukaku after Lennon is fouled by Gouffran. The Belgian keeps up his impressive scoring record against Newcastle.

Goal: Everton 2-0 Newcastle (Romelu Lukaku)

Both games are back underway.

Total domination at Old Trafford where Manchester United lead Tottenham courtesy of goals from Fellaini, Carrick and Rooney. The visitors have been awful but Van Gaal will be delighted with his team's new-found ruthlessness.

Everton have McCarthy to thank for their half-time lead. If they can hold on, the Toffees will move six points clear of the bottom three.

Half-time scores

Manchester United 3-0 Tottenham

Everton 1-0 Newcastle

Pochettino does not project the image of a particularly angry man, but he will surely not resist the temptation to lay into his team after this abject first-half showing.

Manchester United are totally dominating proceedings, with Walker in particular struggling with the pace and trickery of Young.

Worth noting Rooney's celebration there too, simulating a boxing knockout after a video emerged today that appeared to show the striker being sent spiralling to the floor in a friendly bout with Stoke defender Phil Bardsley.

Things go from bad to worse for Tottenham as Manchester United extend their lead through captain Rooney after he picks up possession in a central area and easily drives past Nabil Bentaleb and Eric Dier to finish in confident fashion.

This is arguably the best the hosts have played since Van Gaal took over last summer.

Goal: Manchester United 3-0 Tottenham (Wayne Rooney)

Pochettino has seen enough and replaces Andros Townsend with Mousa Dembele.

A special moment for McCarthy, who nets his first home goal for Everton since joining from Wigan in September 2013.

At Old Trafford, Ashley Young is wreaking havoc down Manchester United's left-hand side.

Not a sniff for Harry Kane so far.

Everton take the lead on Merseyside courtesy of McCarthy, who seemed to confuse the wrong-footed Tim Krul with a low shot.

Goal: Everton 1-0 Newcastle (James McCarthy)

Having provided the assist for the opener, Carrick now has a goal of his own against his former club.

Nacer Chadli initially blocked Fellaini's goal-bound effort from a corner, but Carrick was on hand to power the rebound into the bottom right-hand corner with an impressive header.

A strong start from United but a nightmare for Pochettino and Tottenham.

Goal: Manchester United 2-0 Tottenham (Michael Carrick)

As is being pointed out by many across social media, Fellaini now has as many goals (four) in the Premier League this season as Radamel Falcao.

Manchester United have not been particularly impressive early on but they take the lead after nine minutes through the much-maligned figure of Fellaini.

Daley Blind found Michael Carrick in acres of space in midfield and the former Tottenham midfielder played in Fellaini with a one-touch through ball before the big Belgian fired home across Hugo Lloris.

Goal: Manchester United 1-0 Tottenham (Marouane Fellaini)

A lively start to both games as Jones almost nets an own goal with a dreadful backpass to David de Gea and Everton go close through Romelu Lukaku and Kone after James McCarthy hacked a Newcastle effort off the line.

We are underway at Old Trafford and Goodison Park.

At Goodison Park, Everton, who are just three points clear of trouble at the start of play, will hope to put a little more distance between themselves and the relegation zone with the visit of a Newcastle team who appear to have little to play for under John Carver.

Roberto Martinez makes four alterations to his starting XI as Leighton Baines, Arouna Kone, Darron Gibson and Aaron Lennon all come in. John Stones is among the substitutes after recovering from illness.

Newcastle, meanwhile, bring in Jack Colback and Yoan Gouffran to replace Mehdi Abeid and Papiss Cisse, with the latter beginning his seven-game ban for spitting at Manchester United defender Jonny Evans.

Focus now switches north as Manchester United seek to retain a firm grasp on fourth place against a Tottenham side who are also vying for Champions League qualification.

Van Gaal has made three changes from the side who were knocked out of the FA Cup by Arsenal last Monday, with Phil Jones, Michael Carrick and Juan Mata come in for Luke Shaw, Marcos Rojo and the suspended Angel di Maria.

Just the one change from Mauricio Pochettino as Danny Rose, labelled the best English left-back in the Premier League by his manager earlier this week, replaces Ben Davies.

Forster picks up the Man of the Match award after his six saves thwarted any hope of a Chelsea victory.

Mourinho will be perhaps content with his team's second-half performance but will no doubt bemoan the decision to penalise Matic and the failure to award his side a spotkick of their own.

Honours even at Stamford Bridge after a very entertaining encounter.

Chelsea edged ahead 11 minutes in after Costa headed home an Ivanovic cross, but were undone by Tadic from the penalty spot after Matic had fouled Mane.

Mourinho's men were dominant late on, but had to withstand a lot of pressure from the Saints before the break.

The result leaves Chelsea six points clear of Manchester City at the top of the Premier League with a game-in-hand.

Southampton leapfrog Tottenham into sixth on goal difference with the latter due to kick-off against Manchester United in 30 minutes.

Full-time score

Chelsea 1-1 Southampton

We're into the final 60 seconds of the four minutes of added time. Chelsea remain on the attack....

Azpilicueta goes close for Chelsea with a right-footed drive that is pushed wide by Forster. The towering goalkeeper impresses again from the subsequent corner, denying Remy before Terry fires wide after seeing an initial effort blocked.

Juan Cuadrado is now on after replacing Willian. The Colombian looks to make an immediate impact but snatches at a shot that goes harmlessly wide.

Loic Remy is on for Chelsea, Oscar removed after another fairly tepid display. Southampton replace Long with Pelle.

Into the final 10 minutes at Chelsea with the hosts now firmly on top.

Team news now from the day's 16:00 GMT kick-offs:

Manchester United v Tottenham

Manchester United: De Gea, Valencia, Jones, Smalling, Blind, Carrick, Herrera, Mata, Fellaini, Young, Rooney

Subs: Lindegaard, Rafael, Blackett, A Pereira, Januzaj, Falcao, Wilson

Tottenham: Lloris, Walker, Dier, Vertonghen, Rose; Bentaleb, Mason; Chadli, Eriksen, Townsend; Kane

Subs: Vorm, Chiriches, Davies, Dembele, Lamela, Paulinho, Adebayor

Everton v Newcastle

Everton: Howard, Baines, Jagielka, Alcaraz, Coleman, McCarthy, Gibson, Lennon, Osman, Kone, Lukaku

Subs: Joel, Naismith, Besic, Atsu, Barkley, Stones, Garbutt

Newcastle: Krul, Janmaat, Coloccini, Williamson, Taylor, Sissoko, Colback, Obertan, Riviere, Ameobi, Gouffran

Subs: Elliot, Anita, Perez, Gutierrez, Cabella, Armstrong, Satka

Crucial double save from Forster to deny Oscar and Hazard. Chelsea are getting closer.

Cahill the latest player to be booked for bringing down Mane. The Senegal international is causing Chelsea real problems.

A double substitution for Southampton as James Ward-Prowse replaces Steven Davis and Filip Djuricic enters the fray in place of Tadic.

A crucial block from Cahill after Long was fed by the nimble Tadic. Ivanovic is in the book for Chelsea after bringing down Mane.

25 minutes remaining for someone to find a winner.

Chelsea upping the tempo now and they hit the post after Willian's effort is deflected by Costa. An impressive overhead kick from the burly frontman is headed wide by Hazard, but the flag is up once more.

Another penalty claim for Chelsea not given as Costa rather hopefully falls over the trailing leg of Jose Fonte.

You get the feeling that we are about to have another week of non-stop tedious debate regarding refereeing controversies.

An early second-half substitute for Chelsea as Matic is replaced by Ramires. Probably a wise decision from Mourinho, with the Serbian lucky not to have already been shown a second yellow card.

We are back underway at Chelsea and a busy start to the second half sees the hosts somewhat fortunate not to have a midfielder dismissed as Matic, already on a yellow card, cynically fouls Mane as he looked to capitalise on a dreadful throw from Ivanovic.

Alderweireld forces another good save from Courtois with a stinging shot.

A very entertaining first-half at Stamford Bridge. Many may have expected the usual Chelsea dominance after that early Costa goal, but Southampton have battled back admirably and can perhaps count themselves a little unlucky not to go in at the break with a valuable lead.

Half-time score

Chelsea 1-1 Southampton

Another chance for Southampton as Long gets in behind once again and lays it off to Mane whose slightly tame shot is saved by Courtois.

John Terry and Gary Cahill are not enjoying themselves in the heart of the Chelsea defence just at the moment.

End-to-end stuff as Costa sends a header wide of Forster's left-hand post and Courtois gets down quickly to prevent Tadic giving Southampton the lead before a goalmouth scramble.

It's been a breathless opening 30 minutes and the visitors are giving a fantastic account of themselves.

Chelsea are really struggling to deal with Southampton's pace now as Long races onto a smart through ball but fires wide under heavy pressure from Courtois. Offside flag is up.

At the other end, Ivanovic tumbles theatrically after Tadic appeared to clip his foot. No penalty, says referee Mike Dean.

Southampton have responded very well to that early setback and equalise from the penalty spot after Nemanja Matic slides in recklessly on Mane.

Tadic squeezes the spotkick in despite a touch from Courtois. Game on.

Goal: Chelsea 1-1 Southampton (Dusan Tadic)

That was Costa's 18th Premier League goal of the season and he edges one clear of Tottenham striker Harry Kane at the top of the scoring charts.

Southampton almost hit back immediately as Mane forces a smart save from Thibaut Courtois and Tadic curls the ball over the bar.

It's taken Chelsea just 11 minutes to take the lead. Branislav Ivanovic delivers a terrific cross from the right-hand side and Costa rises highest to head emphatically past the despairing dive of Fraser Forster.

Koeman will be bitterly disappointed with the marking there.

Goal: Chelsea 1-0 Southampton (Diego Costa)

An early sight of goal for Chelsea but Cesar Azpilicueta blazes high and wide from a difficult angle.

The Spaniard was never likely to add to his one solitary strike for the Blues on that occasion.

Chelsea v Southampton is now underway.

Koeman explains his decision to opt for Long ahead of Pelle:

10 minutes until kick-off at Stamford Bridge.

The last meeting between these two sides came in December, when 10-man Southampton survived the late dismissal of midfielder Morgan Schneiderlin to earn a 1-1 draw at St Mary's.

Saido Mane gave Koeman's team the lead after just 17 minutes but Eden Hazard scored an impressive equaliser on the stroke of half-time.

Southampton would take a similar result today, you feel.

A reminder of the size of the task facing Southampton this afternoon:

Premier League leaders Chelsea have the perfect opportunity this afternoon to compound a truly miserable weekend for Manchester City.

Jose Mourinho's side already held a five-point advantage over their main title rivals before City's lethargic defeat to struggling Burnley at Turf Moor on Saturday evening and still have a game-in-hand owing to their involvement in the Capital One Cup final.

Southampton will be no pushovers, however. The Saints have not been at their flowing best in recent weeks but manager Ronald Koeman will still have his heart set on besting old adversary and compatriot Louis van Gaal to secure qualification for the Champions League.

The visitors currently sit seventh, four points adrift of Manchester United.

Chelsea make one change from the side who drew with Paris Saint-Germain in midweek, with Ramires replaced by fellow Brazilian Willian.

Four changes for Southampton, meanwhile, as Shane Long, Steven Davis, Dusan Tadic and Toby Alderweireld come in.

Graziano Pelle starts a Premier League match as a substitute for the very first time after an iffy run of two goals in his last 20 top-flight appearances.

Chelsea: Courtois; Ivanovic, Cahill, Terry (c), Azpilicueta; Matic, Fabregas; Willian, Oscar, Hazard; Diego Costa

Subs: Cech, Filipe Luis, Zouma, Ramires, Cuadrado, Remy, Drogba

Southampton: Forster, Clyne, Fonte (c), Alderweireld, Bertrand, Wanyama, Schneiderlin, S. Davis, Tadić, Mané, Long

Subs: K. Davis, Yoshida, Gardos, Djuričić, Ward-Prowse, Pellè, Targett

Good afternoon and welcome to IB Times UK's live coverage of a three-game Sunday in the Premier League.

Everton face Newcastle and Manchester United host Tottenham later on, but first we turn our attentions to Stamford Bridge where Chelsea welcome Southampton.

Kick off in West London is a little under an hour away. Team news to follow...