Marti Cifuentes said he would sleep soundly after QPR got the vital win they needed against Preston but warned his players not to ease up.

Lyndon Dykes’ first-half goal secured a 1-0 victory that takes Rangers to 50 points, six above the relegation zone with matches against Leeds and Coventry to finish the season.

Their superior goal difference means their Championship survival will be all but secured if second-bottom Sheffield Wednesday lose at Blackburn on Sunday.

Asked if he believes Saturday’s win will be enough to keep Rangers up, Cifuentes said: “I hope so. Right now it looks like a big step forward.

“But whatever happens in the next games, I think the kind of mindset – the winning culture we need in this club – means that we are going to try to keep winning until the end of the season.

“My mindset is that of course today we took a big step forward in the right direction but until the job is done it’s not done, so we need to make sure that we go into the last two games all-in.

“I’m going to sleep pretty well, that’s for sure. But until the job is done it’s not done.

“I’m very happy for the guys. It was a difficult game with a lot of pressure and we responded.

“We had to win this game. The focus was excellent and I’m very proud of the guys.”

Dykes’ goal was his first in 16 matches for QPR and only his fifth in the league this season.

The striker took advantage to tap into an empty net at the far post after Preston keeper Freddie Woodman spilled Chris Willock’s cross.

“I’m very happy for Lyndon. Today he had one of his best games of the season, if not the best,” Cifuentes said.

“He showed character and personality. Sometimes football is about passion and I think all the guys showed a lot of passion.

“We’ve been talking about the need for ugly goals and he was in the right place at the right time.”

Preston boss Ryan Lowe suggested his players would be hauled in for extra training after their poor performance.

“It wasn’t good enough. Nowhere near the levels,” Lowe said.

“I know it’s a mistake for the goal, but we’ve got to do better all-round, with and without the ball. I didn’t recognise that team as a Preston North End team.

“Back to the drawing board, two games to go, and I don’t want the season to just peter out.

“We felt that today was a game that we could compete in and win. We competed to an extent, but the quality on show from both teams wasn’t great. I expect my team to be better.

“We didn’t sustain attacks, didn’t look after the ball and it wasn’t a performance I felt could win a game of football and I said that to the players.

“They expected to take a few extra days this week but we’ll be back in, back at the training ground working hard, because we’ve got two important games left.

“We’ve got to be solid and resolute – back to being us. Back to being what’s got us this far. We were nowhere near today.”

Boss David Wagner warned Norwich cannot let up in their bid for a Championship play-off place despite moving six points clear with a late 1-0 win at Preston.

Gabriel Sara struck in the 86th minute to bag a crucial victory for the Canaries against their promotion rivals on a day where fellow contenders Coventry and Middlesbrough also dropped points.

Seventh-placed Hull have a game in hand on Norwich but Wagner’s side are in pole position to secure that final spot after an excellent performance at Deepdale.

A goalkeeper masterclass from Freddie Woodman prevented Norwich from striking earlier – he made four excellent first-half saves – but Sara’s fifth goal in seven matches broke the deadlock.

“We’re a step closer [securing a play-off place] but it isn’t done,” Wagner said.

“We have some further work to do but seven points from our last three games – and three top performances – is fantastic.

“We’re all a bit exhausted but we have a couple of days off now and we can’t wait to get back to Carrow Road against Bristol City.”

In a game packed with chances, Woodman kept Preston in it. He first saved from Borja Sainz before denying Ashley Barnes from close range.

Sara went agonisingly close to breaking the deadlock but again Woodman did well to collect a fizzing 25-yard volley while he then stopped Sara in first-half stoppage time.

Preston had plenty of chances of their own, with Norwich stopper Angus Gunn thwarting Jordan Storey from close range.

“We deserved the win, performance-wise we looked very mature, very calm and very composed,” Wagner added.

“Unfortunately we had to wait quite a long time [to win it] but I have the feeling we deserved the goal.

“It was important to keep cool heads and to keep the crowd on a low. How the players executed the plan was just great.

“Unfortunately we didn’t use our opportunities [in the game], even though there were not a lot of them.

“But I thought we were always in control, even though some of our final passes and final touches could have been a bit better.

“We defended super, super well. We gave them more or less nothing apart from set-pieces.

“We knew they would be a threat on set-pieces but the players were competitive and it was a top performance.

“I’m over the moon about the result and the clean sheet as well. In possession we were composed even though we didn’t execute clearcut chances but we always looked in control.”

Preston dropped to 10th and are now eight points off sixth place, although they have four games left.

“It’s mixed emotions, really,” said manager Ryan Lowe.

“Disappointed with the result, pleased and proud of the boys for everything they have given all season.

“We have fallen a little bit short. It hasn’t been for the lack of trying, effort, desire or commitment – everything I like was definitely there.

“It is that final bit, in both boxes, isn’t it? But, as I say, I am always proud of the boys.

“I thought we were the better team really, if I am being honest – especially first half, we had some good moments.

“In the second half they had the ball a bit more; we were ready to pounce and go.”

Freddie Woodman produced a goalkeeping masterclass but Gabriel Sara’s late winner saw Norwich beat Preston 1-0 at Deepdale to move closer towards securing a coveted play-off place.

The former Newcastle shot-stopper pulled off a string of fine saves but Brazilian midfielder Sara’s 86th-minute strike dented the Lilywhites’ play-off hopes and left the Canaries six points clear of seventh-placed Hull.

Woodman made four excellent saves in the first half alone while the Lilywhites also hit the crossbar but it was Sara’s later intervention which proved crucial.

It was the playmaker’s fifth goal in seven games, with the Canaries having left themselves well-placed to be in the play-off mix with just three games left.

Preston dropped to 10th and are now eight points off sixth place, although they have four games left.

Defender Liam Lindsay went close for the home side in the 13th minute but his header flew narrowly over.

Midfielder Mads Frokjaer forced a fine save from Canaries keeper Angus Gunn not long after as the home side forced the early pace in their quest to further their play-off hopes.

At the other end, Sara picked out Borja Sainz with a fine pass but the Spaniard rifled his powerful volley wide of the target.

Centre-back Jordan Storey was then thwarted from close range by a superb save from Gunn.

But another missed chance nearly cost the home side but for Woodman’s brilliant intervention.

The on-song keeper produced an excellent block to deny Sainz the opener as the visitors found their way back into the contest.

Two minutes later Woodman saved well from Ashley Barnes as the home side found themselves on the back foot.

Sara went agonisingly close to breaking the deadlock but again Woodman did well to collect a fizzing 25-yard volley.

Woodman saved again from Sara in first-half stoppage time as the home side were able to get some much-needed respite going into the break.

But that was just before Jack Whatmough thought he had put them ahead on the stroke of half-time, his thundering header having beaten Gunn and crashed into the woodwork.

Sara smashed over the bar after just two minutes of the second half while Sainz’s deflected effort fell fortuitously into the path of Josh Sargent but he lashed across the face of goal.

Kenny McLean fired a powerful shot over the bar as the visitors pushed for a winner and the pressure told with just four minutes left when Sara pounced to win it for the visitors.

Woodman got a hand to the shot but not enough to prevent it going into the far corner.

Midfielder Alan Browne had a shot cleared after a goalmouth scramble as Preston desperately tried to get back on level terms but Sara’s winner was a real sucker-punch to their play-off ambitions.