Leicester boss Enzo Maresca has told veteran striker Jamie Vardy he has a key role to play as the Sky Bet Championship leaders edge their way back towards the Premier League.

The 37-year-old scored the only goal in a 1-0 win at Sunderland on Tuesday evening which ended the Foxes’ three-game losing streak in the league and maintained their three-point advantage over second-placed Ipswich.

Asked about the former England international’s contribution, Maresca said: “We know very well that Jamie is so important for us. He has been so important this season and he will be important for the end of the season.

“He has experience, but also he has done in his life and is doing the most important thing in football, that is scoring goals.”

Vardy’s 13th-minute header after Anthony Patterson had saved Wout Faes’ initial effort proved the difference between the sides on a night when the Foxes might have had the game won by half-time, but then needed a fine save from goalkeeper Mads Hermansen after the break to deny Trai Hume a spectacular equaliser.

The home side were aggrieved not to be awarded a penalty for Hamza Choudhury’s stoppage-time challenge on defender Dan Ballard as they mounted a concerted late charge.

Interim Sunderland boss Mike Dodds said: “Dan is adamant it was a penalty. My initial gut is why would he go down?”

Maresca admitted City had not played as well as they had in successive defeats by Middlesbrough, Leeds and QPR, but was delighted with their resilience as the Black Cats rallied.

He said: “At this moment, the most important thing is to win games, and also as a team probably we need to learn to win games in an ugly way like tonight.

“In the second half, we suffered a lot, but in the first half, again we created many chances especially at the beginning. We missed, but fortunately we could score with Jamie and at the end, we won the game.”

Sunderland’s fifth defeat on the trot left them closer to the bottom three than the top six in terms of points, but Dodds was adamant there are reasons to be cheerful.

He said: “They are human. They’ve lost five on the bounce, so they’re not machines, they are aware of that, I’m aware of that. But I do feel that we are one win away from putting a number of wins together.

“Unfortunately the result wasn’t the result we wanted, but I think the performance would show that there is some light at the end of the tunnel.”

Jamie Vardy’s 13th goal of the season proved unlucky for Sunderland as Leicester ended their losing streak to strengthen their Sky Bet Championship title hopes.

The 37-year-old’s first-half header was enough to secure a 1-0 win at the Stadium of Light, although it took a fine save by goalkeeper Mads Hermansen to deny Trai Hume a spectacular equaliser and condemn his team to a fifth successive defeat.

Enzo Maresca’s men would have been kicking themselves had they allowed two priceless points to slip from their grasp after squandering early chances, but they had to resist a stern examination as the hosts finished strongly.

The Italian’s response to Saturday’s 2-1 home defeat by QPR was to shuffle his pack with one of his four changes restoring Vardy to the starting line-up, while at the other end of the scale, Sunderland midfielder Chris Rigg was handed a first league start at the age of 16.

Leicester’s bandwagon had stalled somewhat after a run of three successive defeats, while Sunderland had lost their previous four and in the circumstances, a scrappy start to the game was perhaps not unexpected.

The Foxes were first to show when Stephy Mavididi cut inside from the left and raced away from Dan Ballard only for Luke O’Nien to get a vital touch on his cross, and it took an improbable double-save from Anthony Patterson to deny Vardy and then Yunus Akgun after Sunderland had been exposed down their right once again.

Patterson produced a fine reaction stop to keep out Wout Faes’ header from a 13th-minute Kiernan Dewsbury-Hall free-kick, but Vardy pounced to nod the rebound home.

The Black Cats started to work their way back into the game and Hermansen was sent sprawling to his left to claim Jobe Bellingham’s header from a 31st-minute O’Nien cross, but Patterson had to get down well to save Hamza Choudhury’s first-time strike as City pressed once again.

Sunderland returned after the break in determined mood with Dan Neil probing from midfield, but they were unable to pierce the blue wall which stood between them and Hermansen until Hume took aim from distance and saw the keeper tip his 64th-minute piledriver on to the crossbar.

Hume forced Hermansen into further saves with an 80th-minute attempt from distance and a stoppage time free-kick as the home side piled on the pressure, but the visitors, who sent on Wilfred Ndidi as a late substitute on his return from injury, held firm to see out an important win.

Norwich boss David Wagner insists he can get the struggling Canaries back on track but admits he is unable to say whether he will be given time to turn his side’s fortunes around.

Norwich’s miserable Championship run continued with a 3-1 defeat at Sunderland, meaning Wagner’s side have now won just two of their last 10 games and tumbled to 17th in the table.

The Canaries took the lead at the Stadium of Light through Hwang Ui-jo but Trai Hume and Dan Neil put the home side ahead before the break, before Jack Clarke wrapped up the win for Sunderland in the second half from the spot with his ninth goal of the season.

The defeat means Norwich are now winless in five, and Wagner accepts such form will lead to questions about his future.

“I take responsibility and I have to find solutions to change it,” he said.

“The recent form is not where we want it to be and far away from where we can be and what we’ve shown. This is a big problem for us.”

Asked whether he thinks he will be given time to turn it around, he said: “I understand the question but it is not a question I can answer.”

He did, however, insist he has full belief that he remains the man for the job.

He said: “Yeah, obviously. These are situations you face as a manager which you don’t like but these are challenges that are part of a manager’s life.

“It’s up to me to get this sorted, but how much time or if I get the time, as I said it’s not a question (I can answer).”

To get back to winning ways, Wagner says his side – particularly his senior pros – need to cut out the individual mistakes.

He said: “I think we should not shy away from this. Everyone sees who does the mistakes and at the minute they are my senior pros.

“This hurts double and it costs because these are usually the players you can lean on and give the ball in certain situations, but at the minute it’s where the problem is as well. It’s a good dressing room, they stick together.”

Home boss Tony Mowbray was delighted to end a run of three straight defeats, with Sunderland climbing to seventh in the table.

He said: “I think it was the right result for the way the game went.

“It felt a little bit ‘here we go again’ when they scored, I don’t think they’d been in our half up until that point and yet we’re a goal behind.

“We showed great character to get in front before half-time, with some really good, positive front-foot play. It was important for us, I thought it was harsh on us to have lost three games – there were some okay performances in there.

“You have to take it on the chin when you lose and what was important for us was to keep the confidence up. We showed them a lot of clips of the Leicester game and the rewards of playing on the front foot.

“We did that well today, suffocated them for long spells and it wasn’t really until the last 15 that they asked questions of us, and then in that period we could have scored more goals on the break.”