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.

Leeds boss Daniel Farke felt his side should have been awarded two penalties in their goalless home draw against Sunderland.

United missed the chance to go top of the Sky Bet Championship after being denied a 10th straight home league win after leaders Leicester had slipped to a 1-0 defeat at Millwall.

A first-half cross struck Sunderland defender Dan Ballard on the elbow and a second-half corner hit visiting skipper Luke O’Nien on a raised hand, with both penalty shouts for Leeds turned down by referee Tim Robinson.

Farke said: “We didn’t create enough clear-cut chances. That’s why we didn’t win this game.

“I also have to say, we were pretty unfortunate with several decisions today. It was a clear handball in the first half, should have been a penalty, and a clear handball in the second half, should have been a penalty.

“If there is a rule how there should be a handball, I ask just for the rule.

“I think we’ve had six letters during the season so far apologising for (not being given) a penalty or for red cards – we’ll probably get two more letters now, but it won’t help us.

“They were decisive moments, but credit to Sunderland I think. In the last five games they’ve had four clean sheets.

“I’m annoyed with the (penalty) decisions because they were decisive, but I also like to be self-critical and today we didn’t create enough clear-cut chances.”

Sunderland had won only one of their previous eight league games under interim boss Mike Dodds, but have had clean sheets in four of their last five and proved a tough nut for Leeds to crack.

But Dodds, placed in temporary charge for a second time this season when the Black Cats sacked Michael Beale in February, was in no mood to celebrate his side’s hard-earned point.

Dodds said: “I’m happy for them, but I don’t want to go over the top. I’ve just said to them that we have drawn the game, we haven’t won it.

“There were a lot of positives, but we have drawn the game and I don’t want to be sat here celebrating draws.

“Our out-of-possession stuff was excellent. I didn’t feel at any point that Leeds were going to score or break us down or carve us open.”

Dodds would not be drawn on whether Leeds should have been awarded at least one penalty.

“The reality is that these decisions are swings and roundabouts. It would have been unbelievably cruel on us,” he added.

“I felt all their chances came from our sloppy play and I just said to the group my biggest disappointment was our quality with the ball.

“Our evening would have been a lot more comfortable had we not turned it over far too much.”

Delano Burgzorg’s winner helped Huddersfield beat Sunderland 2-1 to end a five-game winless run and move six points above the Championship relegation zone.

The visitors took the lead through Michal Helik’s header from a well-worked corner, but the Black Cats quickly levelled as Luke O’Nien fired home from a free-kick.

Visiting goalkeeper Chris Maxwell made some fine saves to keep the score level throughout the second half before Burgzorg bagged the winner in the 67th minute.

The result meant the Terriers moved clear of the bottom three, while Sunderland dropped into 11th.

Huddersfield had an early chance after a quick move down the right saw the ball crossed into Jaheim Headley, but Anthony Patterson made a great save one-on-one.

A slow start to the match saw Sunderland retain most of the ball, but the visitors threatened on the counter-attack and took opportunities when they could.

A neat pass split the home defence down the middle for Burgzorg to burst forward, but he fired into the side-netting.

Huddersfield took the lead in the 28th minute when the Black Cats were unable to clear their lines from a corner as Tom Lees headed the ball towards Helik, who nodded in at the near post.

Sunderland had an opportunity almost instantly from a free-kick just outside the box when Jack Clarke’s vicious effort forced Maxwell into an excellent dive to his left to push the ball away.

They soon found the equaliser in the 40th minute after Patrick Roberts’ free-kick reached Jenson Seelt in the box, who nodded to O’Nien at the near post for the captain to smash home from close range.

A quick start to the second half saw Sunderland nearly take the lead when Seelt blasted over the bar from Roberts’ cross.

Maxwell continued to keep his side in it, sticking a leg out to deny Jobe Bellingham one-on-one before making a superb save to paw away Trai Hume’s effort that looked destined for the top corner.

Despite Sunderland’s good chances, Huddersfield retook the lead in the 67th minute after the hosts failed to stop Headley’s mazy run which led to Burgzorg getting the ball on the edge of the box and slotting it into the bottom corner.

Maxwell was forced into a save from Alex Pritchard’s free-kick and the hosts struggled to break through the Huddersfield defence.

Sunderland continued to push in stoppage time as Maxwell made a great save from point-blank range from Clarke’s powerful shot and the rebound from Neil was cleared as the Terriers held on for three points.