Sam Underhill is savouring his England revival having feared his international career might already be over.

Underhill is poised to win his 34th cap in Saturday’s Guinness Six Nations clash with Ireland at Twickenham after returning to favour under Steve Borthwick – a comeback he views as a personal triumph.

Still only 27, the big-hitting Bath flanker missed 20 successive Tests from the second match of the 2022 tour to Australia because of a combination of concussion and selection.

But a sliding doors moment arrived when Jack Willis sustained a neck injury in last autumn’s World Cup and Underhill was propelled straight into the back row for the bronze final against Argentina.

A defensive masterclass consisting of 24 tackles resulted in the man of the match award and now that he has played four consecutive Tests, he grants himself a moment of recognition.

“It’s been class. All I wanted to do was to get back into this team and, if I’m perfectly honest, I was doubtful that that would happen,” Underhill said.

“This is the first time I’ve done a full campaign with Steve, under him as a coach. I played in the Aussie tour and then didn’t I play again until the third-fourth play-off, which was 18 months.

“My aim personally was to get back here. Now that I am, as a player you’re constantly looking for challenges, or things to go wrong or not be going that well.

“Whereas actually now, I am where I want to be and while I want to keep on improving, I have taken a moment to say to myself, ‘hey, you’re doing it, well done’.

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“I’m not just content to be here, I want to win with this team and help and perform as well as I can for them. It’s been class.”

Underhill’s standing among his team-mates was evident in July when Ben Earl spoke of the “shock” that rippled through the squad when the destructive openside was dropped early in the build-up to the World Cup.

As one of half of Eddie Jones’ ‘Kamikaze Kids’ who lit up Japan 2019, he was expected to travel to France having proven he can thrive on the greatest stage of all.

Instead, he was consigned to playing in the Premiership Rugby Cup for Bath in what was a test of his ability to rationalise the vagaries of selection.

“It would be remiss of me, and certainly any player, to think that they have to be in any team,” Underhill said.

“I respect the other players too much to say ‘I should be there’. A decision’s going to have to be made at some point, someone’s going to miss out.

“But someone missing out doesn’t mean they are a bad player. You’re not a better player for being picked than not being picked, or for getting a contract or not getting a contract. That’s the hard thing to get your head around sometimes.

“A lot of people talk about being process-driven but that’s easier said than done. When you aren’t picked, the ability to think that this isn’t actually a reflection of where I am, is important but tough.

“You’re allowed to be disappointed if you’re not selected, you’re allowed to be upset. What isn’t great for you is if you then let that affect your behaviour and let that affect your actions that come afterwards.”

Borthwick names his team to face Ireland at lunchtime on Thursday with England looking to bounce back after a comprehensive defeat to Scotland in round three.

England rookie Chandler Cunningham-South was being mentored for weeks by Richard Hill without knowing he was talking to a World Cup winner.

Cunningham-South made a strong debut off the bench in Saturday’s 27-24 victory over Italy, becoming one of two flankers to win their first cap in the Guinness Six Nations opener alongside Ethan Roots.

As England team manger with the additional role of talent identification for the pathway, Hill has influenced the rise of both players as well as the likes of Sam Underhill and Tom Curry.

Hill’s keen eye for future Test stars is valued highly by head coach Steve Borthwick, who revealed when naming his Six Nations squad last month that “if Richard tells me to track a back-row forward, I’m listening”.

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Cunningham-South had Hill’s approval when on England Under-20 duty but presumed he was speaking to a random enthusiast rather than one of the country’s greatest flankers and a veteran of 71 Tests, including the triumphant 2003 World Cup final.

“There was no doubt that, as an 18-year-old, Chandler’s physicality of carry was not quite the norm for his age compared to others that I was watching,” said Hill, who was initially alerted to him by his first club London Irish.

“He was doing fantastically well so I made sure that I connected with him at the Under-20s training sessions.

“I carried on chatting to him and then after a number of meetings that I’d had with him, Jonathan Fisher, Irish’s academy coach, decided to ring me after a chance meeting.

“John said that Chandler has just told him how he turns out to Under-20s training and ‘a couple of times this guy’s come up to me and you know, he’s had a chat about my game’.

“’He seems to understand how to play and he’s got some reasonable ideas. You know, he sounds like he knows what he’s talking about’. So yeah, that was me!

“He found out probably three months ago that I played in the World Cup. Chandler’s not that fussed about what’s gone on in the past.

“He wanted to know why I didn’t tell him. I said it had no bearing on what we’re trying to achieve, which was him, not me.”

While Cunningham-South’s 14-minute cameo against Italy was rich with promise, Roots was close to the finished article in being named man of the match following a superb display at blindside flanker.

Borthwick first became aware of Roots when he was coaching Leicester against the Ospreys but it was when Hill showed him footage of the 26-year-old cage fighter playing for Exeter during last autumn’s World Cup that he really took notice.

Fast forward five months and the Chiefs forward is part of Borthwick’s England rebuild, providing vital carrying muscle to a side that is short on defence-busting power.

“If there is someone of interest for the future then I’d make Steve aware – and Ethan was one of those players,” Hill said.

“I knew he had a skill set that would interest us – he can carry the ball, carrying into contact, heavy contact, and defensively physical at the breakdown.

“He has been physical and consistent in terms of the performances he put in since joining Exeter this season.”

Roots is expected to continue in the number six jersey for Saturday’s visit of Wales to Twickenham, with Borthwick naming his team on Thursday afternoon.