Boss Gary O’Neil insisted Wolves must maintain their focus after booking an FA Cup Black Country derby against West Brom.

Matheus Cunha’s penalty saw off Brentford 3-2 after extra time on Tuesday and sent Wolves into the fourth round.

Nelson Semedo and Nathan Fraser twice hit back for the hosts after goals from Nathan Collins and Neal Maupay in an entertaining replay.

Wolves now go to The Hawthorns on January 28 for the first Black Country derby in three years – and first with fans in attendance since 2012.

“As soon as we walked off I was thinking about Brighton (in the Premier League). I understand fans will be excited, it will be a big atmosphere, it hasn’t been played with fans for a while,” O’Neil said.

“I can’t wait to lead the team down there and see if we can progress again. There’s a Premier League game coming up and I have a very small tired group to do some work with before we go to Brighton.

“I have mixed feelings about the performance but I’m delighted with the win. The lads have worked unbelievably hard over the two ties. We’ve talked about taking the FA Cup seriously, we went down to 10 men at Brentford and tonight got a bit awkward for us.

“The players deserve credit for how they have approached the whole tie. We gave Brentford a bit of a lift by giving them two crazy goals.”

Collins, who joined Brentford from Wolves for £23million in the summer, opened the scoring after 13 minutes when he prodded in after Kristoffer Ajer’s shot was saved.

Semedo and Pablo Sarabia went close before Semedo levelled after 36 minutes when he tapped in after Thomas Strakosha saved his initial header.

Back came Brentford, though, and Maupay restored their lead six minutes into the second half after a VAR check for offside.

Yet Wolves equalised again with 17 minutes left, Fraser drilling into the corner three minutes after coming on.

It set up extra time and Shandon Baptiste had a shot turned on to the post by Jose Sa before Cunha won it in stoppage time of the first period when Pedro Neto was tripped in the box.

Brentford will now have Ivan Toney available when his eight-month suspension for betting breaches ends on Wednesday.

Boss Thomas Frank said: “It’s massive, no doubt. It’s like signing a Premier League striker who can score 20 goals because he’s proved it.

“Every team would be happy to sign a quality player like him. Ivan is a top player but he’s also very good at making the whole team better.

“Tonight we did a lot of things right. The first half was a bit direct from our side. I was very pleased with the second half and in extra time. In general we put a lot of effort into the game and we could have won.

“The game was decided by a penalty which, in my opinion, is not there. Ben (Mee) clearly hit the ball into Neto’s feet. It’s difficult to make a call but unfortunately I can’t alter that.”

Wolves set up an FA Cup derby showdown with West Brom after a battling extra-time win over Brentford.

Matheus Cunha’s penalty sent Gary O’Neil’s side through to the fourth round as the hosts eventually sealed a 3-2 replay victory at Molineux.

Wolves hit back through Nelson Semedo and Nathan Fraser in normal time after Nathan Collins and Neal Maupay twice gave the visitors the lead.

But Cunha’s extra-time spot kick booked a Black Country derby at the Hawthorns, the first in three years, on January 28.

The Bees will be left with a blank weekend but will at least have Ivan Toney available having missed him during a barren winter, during which they have won once since the start of November.

The striker completes his eight-month ban for betting breaches on Wednesday.

The 1-1 draw in the initial tie ended a five-game losing streak for the Bees and confidence still looked low until they scored against the run of play after 13 minutes.

Wolves had been in the ascendancy but were caught when Kristoffer Ajer wriggled goalside of Matt Doherty.

His fierce effort was parried by Jose Sa but, when the ball was played back in, Maupay’s shot was blocked and Collins bundled the ball in from six yards.

It was part redemption for Collins who endured a nightmare against his former club in the Premier League last month, gifting them three goals in a 4-1 defeat.

It failed to deflate Wolves, though, and they went close to a leveller after half an hour.

Cunha cross found the unmarked Semedo and, with Thomas Strakosha stranded, the defender’s shot was blocked by Brentford’s massed ranks on the line.

The ball ran for Pablo Sarabia but he could only put his effort into the side netting.

Yet the hosts did not have to wait long for a leveller six minutes later when Semedo reached Cunha’s flighted cross, his header was parried by Strakosha but he had the easiest of tasks of tapping in the rebound.

It should have given Wolves the extra momentum but they were behind again six minutes after the break.

Keane Lewis-Potter’s cross caused problems on the edge of the box and when the ball ran to Maupay he smashed in high from eight yards. The striker was initially ruled offside but, after a two-minute VAR check, the goal was given.

Maupay has scored just four goals this season – and only five since February 2022 – with two coming against Wolves after his strike in the original game.

Brentford were dreaming of the fourth round, which they had only gone beyond once since 2006, and Mikkel Damsgaard curled a free kick at Sa.

But the tie continued to twist and Wolves levelled again with 18 minutes left when substitute Fraser, on for just three minutes, drilled into the corner.

A minute later the forward should have put the hosts ahead only for Strakosha to pull off a wonderful close-range stop.

From then extra time loomed and Sa turned Shandon Baptiste’s effort onto the post soon after the restart.

But Wolves snatched a deserved win in stoppage time of the first period when Cunha converted from the spot after Pedro Neto had been tripped.

Brentford boss Thomas Frank told Nathan Collins he will never have a worse match after his horror show in the 4-1 defeat against the defender’s former club Wolves.

Collins arguably had his best game for Wolves – but unfortunately the centre-half left Molineux to join Brentford in June.

The Bees’ record signing endured a nightmare evening, handing Wanderers two goals with terrible passes, as Brentford slipped to a fourth straight defeat.

“I told him it will never be worse than this, with a smile on my face,” said Frank.

“He’s been a very positive player for us this season, he’s performed very well for us. It happens.

“Tonight he will be down but tomorrow it’s a fact that the sun will rise again. I expect him to walk into training with his head held high.”

Having already let Mario Lemina score with a free header, Brentford contrived to gift Wolves a second from their own kick-off.

They played the ball back towards goalkeeper Mark Flekken but Collins left his backpass short and, barely 10 seconds after the restart, Hwang Hee-chan had rounded the Dutchman and tapped into an empty net.

Brentford pulled one back immediately through Yoane Wissa but when Collins and Mads Roerslev allowed Toti’s clearing header to float through to Hwang, the South Korean flicked the ball over Ethan Pinnock and finished past Flekken.

Wolves lost Hwang to a back spasm moments before the interval, but his replacement Jean-Ricner Bellegarde wrapped up their victory with 11 minutes left.

Collins was again the fall guy when his lazy pass across the face of goal was intercepted by Matheus Cunha, who played in Bellegarde for a simple finish.

Brentford could soon be looking nervously over their shoulders at the relegation battle after a sixth defeat in seven matches left them just four points above Luton in 18th.

“This is a good club, a good team and we have character in abundance and we’ll go again,” added Frank.

“A big thing is to stay calm and believe in the work we do and the processes. That’s what we’ve done in the past and that will get us out of this minor run of poor results.”

Victory completed a festive double for Wolves following their Christmas Eve home win over Chelsea, and was their first success in London in 15 attempts.

“I’m really pleased,” said boss Gary O’Neil. “Although we didn’t have loads of control of the ball we were able to punish them.”

The raucous travelling support sung O’Neil’s name throughout the second half.

He added: “The fans have been incredible for me and I have unbelievable respect for the fans. I understand how underwhelming it might have been when Gary O’Neil was announced as their manager but the connection with them has probably been my biggest positive so far.

“I’m sure if we keep winning 4-1 they’ll keep singing my name. We’ve had two fantastic results for them to enjoy over the festive period.”

Hwang Hee-chan scored twice as Brentford forgot how to defend and Wolves took full advantage with a 4-1 win in west London.

Hwang took his tally for the season to 11 as Wanderers followed up their Christmas Eve win over Chelsea by collecting another festive three points.

It was a first victory in the capital in 15 attempts for Wolves, their last coming in a 2-0 win at Tottenham in February last year.

But it was gifted to them by a Brentford side who could soon be looking nervously over their shoulders at the relegation battle after a fourth straight defeat and a sixth in seven matches.

The Bees are riddled with injuries and suspensions – they had 10 players unavailable here – but there was still no excuse for some alarming defensive errors.

Nathan Collins arguably had his best game for Wolves; unfortunately the centre-half left Molineux to join Brentford in June.

The Bees’ record signing endured a nightmare against his former club, handing them two goals with terrible passes on an evening to forget.

Wolves were inches from taking the lead when Joao Gomes played Hwang in behind and his low cross was sliced narrowly over his own crossbar by Vitaly Janelt.

But from the corner, in the 13th minute, they did find the net after the ball was cleared as far as Pablo Sarabia, whose cross was met by a header from the totally unmarked Mario Lemina.

What came next was an utter farce from the hosts as they played the ball back from their own kick-off towards goalkeeper Mark Flekken.

Collins’ backpass to the Dutchman was woefully underhit and, barely 10 seconds after the restart, Hwang had rounded him and tapped into an empty net.

The crowd at the Gtech Stadium had barely caught their breath again when the Bees pulled one back, Yoane Wissa latching on to Neal Maupay’s clever flick and firing home.

Unbelievably, it could have gone from goalless to 2-2 in the space of five minutes but Jose Sa kept out a close-range header from Janelt.

Instead Wolves doubled their lead again when Toti’s powerful, clearing header was allowed to float between Collins and Mads Roerslev and straight to Hwang.

The South Korean turned, lifted the ball over the covering Ethan Pinnock and fired the ball past the exposed Flekken into the bottom corner.

Brentford could have pulled another back before half-time but Collins headed a Saman Ghoddos corner over and Maupay fired wide after being fed by Wissa in stoppage time.

Wolves lost Hwang to a back injury moments before the interval, but his replacement Jean-Ricner Bellegarde wrapped up their victory with 11 minutes left.

Collins was again the fall guy when his lazy pass across the face of goal was intercepted by Matheus Cunha, who played in Bellegarde for a simple finish.

Nathan Collins has given his backing to under-pressure Republic of Ireland manager Stephen Kenny as speculation over his future mounts.

Ireland’s hopes of qualifying for the Euro 2024 finals were dealt a potentially fatal blow on Sunday evening when they were beaten 2-1 by Group B rivals the Netherlands in Dublin on a night when they simply had to win.

Kenny, who is contracted until the end of the campaign, remained defiant after the final whistle as his critics sharpened their knives, but Brentford defender Collins is firmly behind the 51-year-old.

Asked if he wanted the manager and his staff to stay, he said: “One hundred per cent.

“I can’t put into words how much work they put in, every day and every hour, how many hours they watch other teams. Their whole lives have revolved around this week.

“He has given me my chance, he has put me in and has had belief in me, he is putting confidence in me and all of them. I can’t speak highly enough.”

Kenny replaced Mick McCarthy as manager in April 2020 after stepping up from the Under-21 ranks, and has since blooded a new generation of young players and attempted to play a more progressive brand of football.

However, while his team has won plaudits at times, positive results have been hard to come by and a return of five wins from 26 competitive games tells its own story.

Defeat by the Dutch left Ireland with just three points from their first five games, 12 adrift of leaders France and six behind both the Netherlands, who have played a match fewer, and Greece.

Collins said: “Obviously the table speaks for itself. We need to be proud of ourselves and go into the next game with a bit of pride and make amends for it.

“We can’t just let this now be it. We can’t just let it fade away. We put in so much work. We have gotten so close, we might as well carry it on, take that next step to push on and get better and beat teams at home, finish teams off home and away, take our chances, learn from it and build a team who can beat anyone.”

This month’s double-header – France in Paris last Thursday evening and the Dutch at the Aviva Stadium – always looked a big ask against teams ranked second and seventh in the world respectively.

But where the Republic were beaten comfortably at the Parc des Princes, where they lost 2-0, they led Ronald Koeman’s Netherlands courtesy of Adam Idah’s early penalty and might have increased their advantage before Cody Gakpo levelled from the spot and set the stage for substitute Wout Weghorst to win it after the break.

Collins said: “Everyone knows we were close with that performance. Putting in a performance against a top side like that, it’s very frustrating. It’s massively frustrating.

“The lads put everything into it, we made them very uncomfortable, but they showed their quality and that is how they got their goal. We should have taken a few more chances in the first half and it would have been a different game.

“But honestly, I am proud of that performance. We were good, we were strong, we were set-up well, but we didn’t put our chances away.”