Top-of-the-league Sunderland extended their perfect start to the season as they beat Portsmouth 3-1 at Fratton Park to secure their fourth Championship victory in as many matches.

The visitors went ahead 31 minutes into the match through a Zak Swanson own goal and never looked back.

It was an unfortunate moment for Swanson, who was in the wrong place at the wrong time when team-mate Jordan Williams’ clearance rebounded off him into the goal.

Republic of Ireland international Alan Browne added a second - his first since signing for Sunderland in the summer transfer window - six minutes into the second half, before Romaine Mundle made it 3-0 and killed the game as a contest in the 56th minute.

Portsmouth made four substitutions on the hour, including the introduction of deadline-day signing Mark O’Mahoney, but none were able to get their team back into the match.

The hosts managed just one shot on target before Luke O’Nien’s stoppage-time own goal gave them a consolation. They await their first victory of the campaign and sit 18th in the table.

Oxford United went up alongside Portsmouth, but enjoyed their afternoon a little more as they came from behind to beat Preston North End 3-1 at the Kassam Stadium.

It was a first defeat for Preston manager Paul Heckingbottom, who was appointed manager earlier in the month after Ryan Lowe was sacked.

The visitors started better, with Emil Riis Jakobsen opening the scoring after just three minutes. But in-form Mark Harris levelled after 20 minutes with a header as he scored for the fourth straight league game.

It was to get even better for Oxford in the second half when Tyler Goodrham put them into the lead with a spectacular strike. Preston were then reduced to 10 men, with Liam Lindsay picking up a second booking in the 70th minute, and Greg Leigh wrapped up the points a minute later.

The win takes Oxford to eighth, while Preston are in 21st, one place below Sheffield Wednesday who were beaten 3-0 by Millwall at the New Den.

Josh Coburn scored on his debut for the hosts in the second half, before goals from Duncan Watmore and Jake Cooper secured Millwall’s first win of the season. For Wednesday, it’s now three straight defeats.

Unbeaten Leeds United went fourth in the table following a 2-0 victory over Hull City, who sit 19th and are still waiting for their first victory of the campaign.

Second-half goals from Mateo Joseph and Joel Piroe at Elland Road helped Leeds secure back-to-back victories for the first time this season.

Neil Harris paid tribute to the squad he inherited for ensuring Millwall will be playing Sky Bet Championship football again next season.

The Lions guaranteed their place in the second tier courtesy of a third straight win delivered by Duncan Watmore’s 71st-minute strike against former club Sunderland.

The forward pounced at the near post to turn in Brooke Norton-Cuffy’s delivery and that proved enough to earn a vital three points for Millwall.

Harris praised all of his players, having seen the team deliver six victories in his first 11 matches in charge to climb away from the relegation zone.

Harris said: “Both teams can be disappointed with how we handled it at times. It became a typical game of football in April.

“We came with a clean-sheet mentality. We wanted an attacking threat but the important thing was to have a clean sheet. We needed a moment to score a goal.

“I’m delighted for the players. We had resilience, desire, all the Millwall traits.

“I couldn’t have envisaged being here in this position seven weeks ago when I took over. To win six games out of 11 is a great achievement to reach my demands.

“My job was to galvanise the football club. I did the first one and hopefully now we have done the second.”

Sunderland already knew what division they would be playing in next season but this was the sixth game without a win at the Stadium of Light.

The Black Cats have failed to score in four of those matches, with interim boss Michael Dodds admitting that work needs to be done on the transfer front to improve that next season.

He said: “We knew the first goal would be important. We changed the shape slightly to have more attackers on the pitch.

“A by-product of that was Millwall waiting for one moment. They put so many bodies behind the ball and we knew that one moment would be so crucial. I’m angry because we emptied the middle of the pitch and they scored on transition.

“But we didn’t work the goal enough either, we weren’t clever enough or quick enough in the top third of the pitch. Those are the main frustrations.

“The top area of the pitch is where we are trying to find solutions, to try to be more of a threat.

“I’ve got two more games and it won’t be solved in the next two games. I have tweaked, tinkered, tried to find solutions in that area, but it’s obvious we need to do some work around.

“We will keep working with the group to find those solutions.”

Millwall effectively secured Sky Bet Championship football next season after former Sunderland forward Duncan Watmore’s second-half strike at the Stadium of Light earned a 1-0 win.

In a game of few chances, Watmore, who had only been on the pitch four minutes, pounced to deliver the crucial goal that earned the Lions a third successive win.

Sunderland, however, saw their own winless run on home soil extended to six matches dating back to February 10.

The hosts threatened first and Millwall goalkeeper Matija Sarkic had to get down low to hold a drive from teenager Chris Rigg after he danced his way through the visiting defence.

Bradley Dack then created a couple of openings for Dan Ballard with some pinpoint deliveries but neither found the target.

Jobe Bellingham headed over another corner kick when he looked like he could at least test the Sarkic, but Millwall survived.

The Lions were struggling to create anything until former Sunderland midfielder George Honeyman’s set-piece was headed off target by Zian Flemming.

In a bid to improve things, Sunderland’s interim boss Mike Dodds pushed Bellingham up front for the second half as part of the changes brought about by replacing Dack with Trai Hume.

And Hume, operating at right wing-back, had the first effort after the restart when he drove a couple of feet over Sarkic’s bar from 22 yards.

In another attempt to lift the tempo by Dodds, Abdoullah Ba and Adil Aouchiche were brought on for the last half an hour.

Soon after that Sunderland thought they had the lead when Ryan Leonard somehow got in the way to block Callum Styles’ goalbound effort from Ba’s cross.

And in the 71st minute Millwall made the hosts pay when Ryan Longman’s low cross from the right was met by substitute Watmore, who had darted ahead of his markers to flick inside Anthony Patterson’s near post.

Bellingham almost deflected Brooke Norton-Cuffy’s cross into his own net in stoppage time but Millwall had already done enough to secure a vital three points.

Erol Bulut questioned Cardiff’s mentality after an “unacceptable” second-half performance in their 3-1 defeat against Millwall at The Den.

Jake Cooper’s volley put the Lions in front at the break after Michael Obafemi and Yakou Meite traded goals during an entertaining first half.

However, Neil Harris’ side controlled the second half, limiting the Bluebirds to scraps before Duncan Watmore made sure of things in stoppage time with a cool finish past Ethan Horvath.

The result lifts Millwall into 16th, six points clear of the relegation zone, while Cardiff are now 11th with three games remaining.

And Bulut insists his side need to show a winning mentality in their remaining games.

“Millwall at home are a good team, they are working and fighting and I was satisfied with the first half, but with the second half, I have no words for the second half,” he said.

“Nobody can tell me ‘two days before we had a game and we were tired’, Millwall also played a few days ago.

“The main thing is the mentality, how you go in the game, if you want to change this game, if you want to win this game, what you are expecting from yourself individually.

“I can speak only to my players, but the mentality on the field has to change, especially in the second half.

“Consistency is the biggest problem that we have this season. If it was a little bit different then we would be speaking now about different things.

“It was like day and night. In the first half it was clear that the better team was Cardiff but we conceded two goals and the second half was not acceptable.

“If you have these small mistakes in your game then it is difficult to come back.”

The win is a huge boost for relegation-threatened Millwall and Harris believes his side are proving a lot of people wrong.

“Every man and his dog wanted to tell me that these lads can’t play at The Den,” Harris said.

“They do know how to play at The Den and it was a big thing for me to try and galvanise the football club and bring the terrace and the pitch together.

“It’s down to the players when they go on the pitch, so they take the credit and the praise for it.

“Tuesday night against Leicester was a monumental performance from the players and a special evening, but in some ways I’m more pleased with today because to back it up with such a comprehensive performance is testament to the group’s mentality.

“We looked a lot more confident today with the ball and I think if we had scored the third goal at the start of the second half we could have gone on to score four or five.

“It’s important for the football club to stay at this level.”

Millwall’s secured a second successive Sky Bet Championship victory as they eased their relegation worries with a 3-1 win at home to Cardiff.

Jake Cooper’s volley had given the Lions a 2-1 half-time lead after Michael Obafemi and Yakou Meite had traded goals.

And Neil Harris’ side refused to feel the pressure, with Duncan Watmore making sure of victory in stoppage time.

Ryan Longman, who scored the winner against promotion-chasing Leicester in midweek, produced a dangerous delivery that forced a crucial intervention from Dimitrios Goutas during an entertaining start to proceedings at The Den.

Then, in the ninth minute, Burnley loanee Obafemi’s powerful strike beat goalkeeper Ethan Horvath at his near post to score his second goal since arriving in January.

Cardiff captain Joe Ralls took aim from the edge of the box as the visitors looked to get back on level terms, but his shot was straight at Matija Sarkic.

However, it was 1-1 in the 24th minute when Meite nodded Rubin Colwill’s free-kick into the bottom corner from point-blank range.

Will Finnie waved away Zian Flemming’s penalty appeal after the Dutchman went down inside the area, much to the disgust of Millwall’s vocal home supporters.

The Bluebirds had the chance to add insult to injury in the 43rd minute, but Nat Phillips dragged his strike from the centre of the box wide of the right-hand post.

The hosts had the final say of the half, though, with Lions skipper Cooper firing home a thunderous volley after an intelligent flick-on from Longman.

Horvath made two excellent saves in the space of 10 minutes after the break as Millwall looked to double their lead.

First he denied Longman after the Hull loanee let fly with a left-footed shot from outside the box, and then got down quickly to push Obafemi’s goal-bound effort behind for a corner.

Cooper had the chance to give his side some breathing room from a set-piece in the 62nd minute, only to fire his left-footed strike wide of the right-hand upright.

At the other end, Ralls tried again from range only to see his attempt saved by Sarkic before Cian Ashford caused chaos in the Lions box with a powerful cutback towards the penalty spot.

Flemming almost made sure of things with five minutes remaining, but Horvath was up to the task once again.

Cardiff pushed for an equaliser in the final 10 minutes, but Brooke Norton-Cuffy put Watmore through on goal in stoppage time and he prodded the ball past Horvath to secure a crucial win for Millwall.

John Swift’s penalty rescued a point for play-off chasing West Brom as they extended their unbeaten run to seven league games with a 1-1 draw at Millwall.

The Lions controlled the first half and were a goal ahead at the break after a fine finish from Duncan Watmore.

However, Swift converted a penalty to ensure the Baggies sealed a seventh game unbeaten in all competitions for the first time since their 2019/20 Championship campaign.

A lively pre-match atmosphere intensified ahead of kick-off as West Brom’s players took the knee to a chorus of boos from the home fans.

The Den got even louder when referee James Bell waved away appeals for handball after Kyle Bartley blocked George Honeyman’s cross inside the box.

Zian Flemming won a free-kick on the edge of the penalty area in the 17th minute having surged straight through the Baggies’ defence. However, his driven effort from the resulting set-piece deflected behind for a corner.

The pressure finally told four minutes later when Watmore pounced on a loose ball before calmly stroking it past Baggies goalkeeper Alex Palmer to give the hosts the lead.

Carlos Corberan’s side were struggling to deal with Millwall’s direct approach and it should have been 2-0 when Michael Obafemi went through on goal from a long ball but his effort was straight at Palmer.

Watmore almost turned provider with 10 minutes left of the half, orchestrating some neat play on the edge of the box before feeding Billy Mitchell, who fired wide from close range.

The visitors finally got on the front foot as the half drew to a close but former Millwall favourite Jed Wallace scuffed his shot after being picked out by Grady Diangana.

Corberan’s side maintained that pressure at the start of the second half, whipping several dangerous balls into the box and controlling possession.

Watmore missed a golden opportunity to give his side a two-goal cushion in the 57th minute, blasting the ball over the bar from the centre of the box.

Obafemi was fouled just outside the area as the Lions appeared to retake control of the clash and moments later Honeyman forced a desperate block from Conor Townsend.

However, Millwall were made to pay for missed opportunities in the 67th minute when Diangana appeared to be tripped by Joe Bryan inside the penalty area.

Bell pointed to the penalty spot and Swift made no mistake, firing the ball into the bottom-left corner.

The Baggies were almost ahead moments later after Alex Mowatt was picked out on the edge of the box by Tom Fellows but his strike did not trouble Millwall stopper Matija Sarkic.

Neither side created a clear-cut chance during a quiet end to a fiery encounter in South London.

Japhet Tanganga headed in a 90th-minute winner as Millwall snatched a vital 1-0 victory over fellow Sky Bet Championship strugglers Birmingham.

The Lions have won three of their four games since Neil Harris returned to the club for a second spell as manager, although they had to withstand some heavy pressure from the Blues in the second half at The Den.

But a dogged display was eventually rewarded as Millwall opened up a five-point gap between themselves and the relegation zone and left Birmingham still just one point above the bottom three.

Millwall had the game’s first big chance in the 11th minute when George Honeyman played a one-two with Duncan Watmore to go through on goal, but his attempted dinked finish was blocked by John Ruddy.

It came in the middle of a good spell for the Lions, with the Birmingham goalkeeper and captain again coming to his side’s rescue when he clawed away an effort from opposing skipper Jake Cooper.

Ruddy was fortunate, however, when he was beaten to the ball, following a ricochet off Michael Obafemi, by Watmore whose header dropped comfortably wide.

Another Birmingham header then went unpunished when a loose headed clearance by Marc Roberts dropped for Zian Flemming, who could only shoot tamely at Ruddy from outside the area.

It took the Blues 41 minutes to muster a chance of their own when Koji Miyoshi’s through ball played in Jay Stansfield and his shot from a tricky angle needed tipping away by Matija Sarkic.

Another opening for the visitors quickly followed when Alex Pritchard sent an effort wide from just outside the box as neither team could break the deadlock before half-time.

Having finally played themselves into the game towards the end of the first half, it was Birmingham who had the first opening after the restart as Lee Buchanan sent a rising shot wide.

Another good opportunity for Stansfield then came and went when he shot wide from inside the area after his initial shot from Juninho Bacuna’s cross had been blocked.

The Blues were then left furious when they weren’t awarded a penalty in the 63rd minute when Stansfield appeared to be held back from Bacuna’s corner by Millwall’s Joe Bryan.

The visitors continued to dominate the second-half proceedings, with Stansfield shooting off-target again from a presentable shooting position.

From nowhere, Millwall found a second wind and finally had another chance of their own when Flemming’s long throw ran for George Saville, who headed over with 15 minutes remaining.

Just when it looked as though the match would end in stalemate, the Lions snatched all three points when Tanganga rose to head in Saville’s corner and spark wild celebrations from the home supporters.

Joe Bryan’s first goal for Millwall earned them a 2-2 draw in a frenetic Championship encounter with Hull at The Den.

After Jaden Philogene and Adama Traore had turned the game around for Hull following Duncan Watmore’s early opener, Bryan struck to secure a point.

The Lions’ home form has been patchy, winning just two of their last eight matches, but they took the lead through Watmore in the eighth minute.

Bryan’s free-kick was met with a miscued clearance by a City defender and the Lions attacker was able to squeeze his shot past Ryan Allsop at his near post to open his account for the campaign.

The Lions had started confidently and Luton loanee Allan Campbell drove into the side-netting soon after.

But that assured start only lasted until the 25th minute. Millwall were unpicked by one pinpoint long ball by Hull centre-back Sean McLoughlin, Philogene timed his run perfectly to get in behind the hosts’ centre-back pairing of Jake Cooper and Wes Harding and threaded his finish beyond Bartosz Bialkowski.

The visitors then looked a threat with nearly every attack they mounted. Bialkowski scrambled the ball around the upright when Liam Delap’s cross deflected off Cooper.

Another defensive lapse saw Hull take a 30th-minute lead. Danny McNamara’s misplaced header back to Bialkowski was seized on by Philogene, the young Tigers winger deftly cut back inside the Millwall full-back and cued up Traore to gleefully lash in from close range.

It could have got worse for the Lions before the break. Scott Twine went close with a free-kick and then could not quite make contact with Delap’s delivery.

Lions boss Gary Rowett reacted by switching to a back five and made a double change with Tom Bradshaw and Brooke Norton-Cuffy replacing Watmore and McNamara.

A Casper De Norre strike was tipped over by Allsop but the summer signing from OH Leuven then assisted Bryan for the 54th-minute leveller, with the former Fulham and Bristol City left-back showing great composure to cut inside a marker and send a low drive past Allsop.

The second period belonged to Millwall as they pressed for a winner, Bradshaw saw his header from a Bryan free-kick fly narrowly past the far post.

There was a big chance in stoppage time as two Lions substitutes combined. Romaine Esse put Aidomo Emakhu through but the Republic of Ireland U21 international thrashed his effort over from inside the penalty area.

Hull, who had been unbeaten in eight league games before their midweek loss to Ipswich, looked happy to settle for a point.