It might not be Stade de France in Paris, but the Brighton and Hove Albion Stadium is expected to be heaving on Sunday.
The Premier League ground - renamed for the weekend to remove the name of one credit card company at the behest of another - holds 31,800 people when full, and the sold-out signs are already up for Ireland's Rugby World Cup Pool C decider against New Zealand.
Between the strong Irish support expected to travel to Brighton, and the likelihood of neutrals siding with the underdog, the majority of Sunday’s bumper crowd will probably be surfing the green wave.
That, in itself, is a step into the unknown for some of this Irish squad, whose previous experiences playing in front of large crowds would have been as the opposition to England or France.
A chunk of Sunday’s experienced that level of noise – and more – in Paris last year.
Stacey Flood, Béibhinn Parsons, Amee-Leigh Costigan, Eve Higgins, Emily Lane and Claire Boles were all part of Ireland’s Olympic Sevens squad, which played to more than 80,000 in Paris.

It’s an experience which Flood expects to stand to them this week.
"The Olympics last year was honestly amazing," the Ireland full-back said, ahead of tomorrow’s Pool C decider.
"I've never felt the ground shake because of noise, so that was an experience in itself.
"It's important to know that a crowd that size is impactful on the game. We get such energy from the crowd and hopefully it is a sea of green behind our green wave.
"I think we have prepped ourselves for that, and when we go out and sing the anthem there and the crowd singing back to us, knowing the support at home, it'll be a pretty special moment.
"There's going to be 31,000 at that stadium and it's sold out. It's amazing for women's rugby to have a sold out stadium in a pool stage of a World Cup.
"Hopefully that grows more and more and we can get a good performance this weekend and get more people behind us from home."
Ireland and New Zealand have only ever played each other three times, with Ireland incredibly boasting a 2-1 record against the six-time world champions, while Ireland also account for the Black Ferns' last defeat in a World Cup game, all the way back in 2014.

It’s only a year since the sides played against each other in WXV, Ireland pulling off a memorable 29-27 win in Vancouver, but both teams have changed considerably in the 12 months since; eight of Ireland’s starting team that day will do so again tomorrow, while New Zealand’s team for the weekend sees just six survivors from the starting side in 2024.
Four of the new faces will be familiar to Flood from the Sevens circuit.
"I feel like it helps you in terms of knowing the types of players you're playing against," she said.
"I also think it's very different in a XVs setting.
"I wouldn't say I'm the same player as I am when I play Sevens. You obviously have skills from that, but you're putting in a different sense of the game.
"We have to know what we can do to counter that. Also, how we're going to defend as a squad, or attack as a squad against those players, because they have jackal threats on the outside channels from playing Sevens.

"We have that too, and we're great runners of the ball. We have Leigh [Amee-Leigh Costigan] and Bei [Béibhinn Parsons] on the wings and Anna [McGann] to come on. They're just as hard to tackle, so I'm glad I'm on their team.
"It's nice knowing who you're playing. That's always good for prep, but it always comes down to what we can do as a squad together."
Since returning from the Sevens circuit after the Olympic Games, Flood has played all 11 of her games as full-back, but with no specialist out-half cover for Dannah O'Brien on the bench, head coach Scott Bemand has confirmed Flood will step into that role if needed this weekend.
Flood won some of her earlier Irish caps in the 10 shirt, and has been taking on extra reps at out-half in training this week, just in case.
She said: "If it's needed, we're ready to go, we have contingency plans for everything.
"I feel like when I first played 10, I did enjoy it. It is a lot on you, especially when you're not playing XVs all the time, so I feel my role of full-back suits me better.
"Dannah just knows the game so well, and I wouldn't have been to that standard, so it's nice to have someone steering the ship when you can just follow which we're so lucky for," Flood added.

The 29-year-old admits she was frustrated with some elements of her game in last week’s 43-27 win against Spain, with two dropped balls in the backfield testing her resolve.
But she says there is a renewed focus after a change of scenery in Brighton this week, and the big prize of top spot in Pool C.
"That's never happened me, where I've had two like that in a game. No one goes out to try make mistakes, it's probably just over-eagerness to touch the ball.
"Obviously, I've wiped that clean, I've practiced during the week. I've put my head down and thinking about the next job mentality, which Sevens is really good for, because you never get a moment to dwell on it.
"I've learned a lot from those moments, and it's just focusing on one job at a time.
"If you do make a mistake, then 'what's your next job? What's the next thing? What's the next involvement?'
"Some things didn't go to plan last week. We saw our purple patches, but we also gave Spain their purple patches. We got seven tries, but we let them in too many times.
"I think that there's that bit of Irish flair and Irish fight in us.
"That's always a good thing, when it's a bit feisty, so hopefully we can bring that into the weekend as well."
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