John Mousinho admitted Portsmouth’s Sky Bet League One title celebrations had an impact on their 2-1 defeat to Wigan.

Pompey had their return to the Championship confirmed after they beat Barnsley on Tuesday, but Luke Chambers and Josh Magennis spoilt their promotion party – which saw them lift the trophy as champions.

Mousinho said: “I think Wigan deserved to win. We were awful in the first half. I don’t think we got the press right.

“We were good in possession, but not out of possession, and we got punished for it. We changed things around for the second half and we were more aggressive and much better.

“Their second goal was poor defensively. We created more chances after our goal but just couldn’t get the equaliser.

“We wanted to go out on a high, so the players are obviously disappointed to have lost that unbeaten run.

“I thought we had enough in the tank pre-match to win it, but it’s been a difficult week in terms of normality. Winning on Tuesday, the euphoria of that, and the awards here on Wednesday meant the preparation was very different from the last 44 games.

“Next week will be back to normal in terms of physicality and mentally.”

Wigan’s Jonny Smith hit a post in the 13th minute, but the visitors took the lead 10 minutes later when Chambers put the loose ball past Pompey goalkeeper Will Norris.

Latics sealed the win when Magennis beat Norris with seven minutes to go, despite Kusini Yengi pulling one back for Pompey in the 85th minute.

Wigan manager Shaun Maloney said: “It was a game of two halves really. The first half was probably the best we’ve played all season. We had chances to increase the lead but didn’t take them. That would have made the game very different.

“Pompey were talking about keeping up their unbeaten run and reaching 100 points, but we wanted to win this game. We’ve had 500 fans travel down here today, so it was important we played well.

“Luke really hurt them the first half, and it would be great to have him back next season.

“Jonny’s really stepped up. I think if anything I need more from him next season. He needs a full pre-season and I think he’s a brilliant player.

“The game changed after their goal. Sam (Tickle) has made some tremendous saves getting in where it hurts. The scuffle at the end on the touchline was just about two teams wanting to win.”

Luke Chambers and Josh Magennis spoilt Portsmouth’s Sky Bet League One promotion party as Wigan beat the newly-crowned champions 2-1 at Fratton Park.

Pompey almost took the lead after six minutes when a poor backpass was intercepted by Colby Bishop, who tried to chip stranded goalkeeper Sam Tickle but put it well wide.

Wigan’s Jonny Smith hit a post in the 13th minute, but the visitors took the lead 10 minutes later when Chambers put the loose ball past Pompey goalkeeper Will Norris.

Latics should have gone two-up just before half-time as Norris parried Charlie Kelman’s powerful shot but Chambers put the follow-up wide.

Despite half-time substitutions, Pompey struggled to claw their way back into the game and Wigan looked to have sealed the win when Magennis beat Norris with seven minutes to go.

Kusini Yengi pulled one back for Pompey, but despite piling on the pressure in stoppage time they could not secure a 28th victory of the season.

Substitute Jason Kerr scored with his first touch to give Wigan a narrow but well-deserved 1-0 victory over 10-man Leyton Orient at the DW Stadium.

Wigan had an early let-off when a weak header from Luke Chambers presented the ball to Darren Pratley, who fired wide from the edge of the box.

But only a desperate header off the line prevented Wigan going ahead after a deep corner from Chambers was headed back in by Charlie Hughes.

Wigan should have hit the front when Callum McManaman fed Josh Magennis, who shot wide from eight yards.

But the game completely changed three minutes before half-time when Orient’s Ethan Galbraith picked up his second yellow card in the space of 13 minutes – both for fouls on his Northern Ireland international colleague Jordan Jones.

From then on it was attack versus defence, with McManaman shooting just wide of the target at the beginning of the second period before substitute Charlie Kelman somehow headed wide from eight yards against his old club.

But Wigan finally got their breakthrough 17 minutes from time when Jonny Smith crossed for Kerr to head home – both of their first touches after coming off the bench.

Bolton suffered a huge blow to their promotion hopes as Wigan completed a Sky Bet League One double over their neighbours thanks to a Stephen Humphrys goal at the DW Stadium.

Bolton created the first chance when Paris Maghoma burst his way past Luke Chambers only to be denied by Sam Tickle.

The visitors were then hampered by the loss of Carlos Mendes Gomes to injury in pretty innocuous fashion, but they continued to boss proceedings.

And defender Eoin Toal had two great chances, heading over from a right-wing cross before seeing a long-range strike well saved by Tickle.

The second half was the same story as Nathaniel Ogbeta’s shot was tipped round the post by Tickle, who then turned away a dangerous free-kick by Josh Sheehan.

At this point, Wigan had not registered an attempt on goal, but that changed on 69 minutes when substitute Humphrys – who had scored twice in August’s 4-0 away win – played a one-two with Chambers before prodding the ball under Joel Coleman.

Wigan had chances to kill off the game too, with Thelo Aasgaard’s volley forcing a brilliant save from Coleman before another substitute, Martial Godo, poked the ball just wide.

Bolton had a great chance to level with two minutes to go, only for Ricardo Santos to head wide from four yards, with most of the players on the pitch being embroiled in a melee on the full-time whistle.

Liverpool left-back Andy Robertson is facing three months on the sidelines with manager Jurgen Klopp admitting the defender’s pending shoulder surgery will be “a big loss” for the club.

The Scotland captain sustained the problem on international duty against Spain but having been assessed on his return to Merseyside the club have decided an operation is the best solution – even if it means the 29-year-old faces a lengthy absence.

“There is a little chance we could try without but talking to pretty much all experts it looks like surgery will be the best thing, especially in the long term definitely, and that means he is out for a while,” said Klopp.

“You only see the real extent of injury when you have a look into it, like properly open (up the shoulder) and fix it – but my experience tells me around about three months.

“That is a shoulder (injury), usually not a lot of times you say it was earlier but Robbo is a quick healer, that is true.

“In this specific case we have to make sure the shoulder structure is stable, because the moment the boy starts all the normal contact stuff again the player has to be ready for that.

“I don’t exactly when, but next Wednesday (or whenever he has the operation) we will know more.

“In my experience you can train pretty quickly again but not football-specific because you have to be careful of challenges and all these kind of things so he will be out for a while. It is a big loss.”

Robertson has played every minute of all eight Premier League matches this season and has been ultra-reliable for Klopp, having missed just five matches in 275 appearances in more than six years for the club.

It means the Scot’s back-up Kostas Tsimikas, who has made 65 appearances in just over three seasons and many of those as a substitute, could make only his second appearance in a Merseyside derby on Saturday.

Other alternatives are the predominantly right-sided Joe Gomez, who has more experience, and 19-year-old Luke Chambers, whose only first team appearance was as an 89th-minute substitute in last month’s Carabao Cup win over Leicester.

On the significance of Tsimikas being ready, Klopp added: “It always was like this.

“Thank God it is not only Kostas we have for that because for the amount of games we have we would already be a bit short.

“But we have Joe Gomez who can play the position, Luke Chambers and other young boys who show up in training quite frequently.

“There is a lot of talent in there so you need options and that is clear. Kostas is definitely the most experienced in the position but he cannot play all the games from now on so we need other options as well and we have to make sure we make all of them.”

Klopp could also field a midfield with no derby experience – Alexis Mac Allister, Dominik Szoboszlai, Ryan Gravenberch and Wataru Endo all arrived in the summer – but the Reds boss does not believe that is a concern.

“It is a special game no doubt but a high pressure game and they all played them. Macca played the World Cup with Argentina, Dom played Serbia recently in a super-important, high-pressure game so they are all used to the kind of game,” he added.

“The exact game, not, but I cannot show them a movie of derbies and say that is how they should be. I don’t think we have to make it too big.”

Liverpool have lost just one of the last 18 matches against their closest rivals – the behind-closed-doors one at Anfield in the Covid era in February 2021 – but Klopp is not thinking about their record.

“It is rather uncomfortable if you tell me about my good record because it doesn’t matter,” he said.

“We try to make sure we don’t think about these things but make sure we are ready, we understand the importance of the game and can’t remember one moment when I said ‘weekend derby’ and enjoyed this thought.”

Luke Chambers insists he could “never walk out” on Kilmarnock’s relegation battle even though he will miss England’s Under-20 World Cup campaign.

The 18-year-old Liverpool left-back, who joined Killie on loan in January, asked to be excluded from Ian Foster’s squad for the prestigious tournament which gets under way in Argentina on Saturday.

Chambers will remain in Scotland, facing St Johnstone at Rugby Park on Saturday as the battle to avoid the drop comes down the last three cinch Premiership fixtures.

Following their 2-0 win over Livingston last weekend, Derek McInnes’ side are in 10th place, three points above bottom club Dundee United and just two points behind ninth-placed Saints.

Chambers, part of the England Under-19 side which won the European Championships last year, said: “It was tough but what Kilmarnock as a club and the staff and players have done for me, I could never just walk out on them when they have three games to go.

“I was always going to stay here and help and contribute to the last three games as much as I can.

“There will be opportunities further down the line when I can go with England. They know the situation.

“They were very understanding and agreed with my decision. I have a good connection with the England manager (Ian Foster) and he understands my decision

“I don’t have any regrets. It was the right decision.

“I have only been here a short period of time but the attachment I have got to the club is massive.

“I have endless respect for the gaffer, the players and the fans. It has been amazing. I have learned a lot.

“People might see it as I’m going back at the end of the season but I see it different.

“The belief in the team has lifted after the win last week and I think we can win on Saturday and just take it from there.”

Killie boss Derek McInnes told Steven MacLean that there are no guarantees in football after the interim St Johnstone boss talked boldly about winning in Ayrshire.

Speaking on the Perth side’s official Twitter account, he said: “We will be in the Premiership. We will go to Kilmarnock and we are going to go and win the game, simple as that and what will be after that will be.”

McInnes said: “I just watched Steven MacLean on TV there and he said that they won’t get relegated and they are coming here and they will win the game on Saturday.

“It is hard to guarantee that as any manager.

“All I can guarantee is we will be ready for a tough game and we will do all we can to win a game of football.”

Liverpool youngster Luke Chambers has signed a new deal with the Premier League side.

The 18-year-old started Liverpool's recent friendly defeat to Manchester United in Bangkok and was a second-half substitute against Crystal Palace in Singapore.

He signed his first professional deal last year and has now extended those terms, though Liverpool did not announce how long the new contract will run.

Chambers, who can play left-back or centre-back, has been a part of the Reds' academy since the age of six and regularly captained the Under-18 side last season, and was part of the England squad that won the European Under-19 Championship in Trnava earlier this month.