Peter O'Mahony gives a penalty away for obstruction.

His glance at Wayne Barnes lets you know what he thinks about that decision.

Tonga point to the posts.

We've a stoppage in play as Vaea Fifita, one of four former All Blacks in the Tonga team, is down receiving treatment

We think he picked it up for that earlier penalty on clattering Sexton without the ball.

Tony Ward
Former Ireland fly-half on BBC Radio Ulster

There's very little space out there. Ireland are attempting to use the width. We know Tonga are going to hit hard and they are certainly doing that. They are a very strong rugby side.

Sexton dusts himself down to send the penalty into touch just outside the 22.

We've been here before, and this time Ireland win their throw but concede ANOTHER penalty for holding on.

James Lowe is the culprit this time. Tonga are so quick to the breakdown.

And now Tonga lose a line-out on halfway.

Bundee Aki makes ground up to halfway, but Ireland have another penalty despite Hugo Keenan being bundle into touch.

Tonga have been really intense, but that penalty count is rising. This time they are blown for taking out Johnny Sexton without the ball.

But again it doesn't stick! Tadhg Beirne is chopped down and is penalised for holding on to the ball.

This has been a fast 10 minutes!

Ireland win the line-out but some sloppy hands see Tonga win it and they manage to send the ball into the Irish 22.

Mack Hansen, who isn't one for the conventional, throws it to himself, sends it into the Tonga half with a 50/22. Superb!

Ireland win the line-out again!

Tonga give away another penalty for an infringement at the breakdown, this time on halfway.

Sexton sends it deep into the 22 and it's a good platform to push for that first try.

Tony Ward
Former Ireland fly-half on BBC Radio Ulster

It's a sigh of relief for Ireland. The first kick is always on your mind. Good start by Sexton and a good start by Ireland.

You know the rest.

Sexton is now just six points off Ronan O'Gara's Irish record.

Image source, Getty Images

Tony Ward
Former Ireland fly-half on BBC Radio Ulster

Tonga are looking to take the game to Ireland early and I think that they will be happy enough.

It's a patient game for Ireland now, unlike last week.

Ireland are now deep in Tongan 22 and there are some HUGE hits coming in from the men in red.

It's a bit too keen and they concede another penalty and Sexton points to the posts.

Ireland push too early and Tonga win the free-kick.

The Pacific Islanders opt to go again.

They win the scrum, again look to go wide and it goes well until Charles Piutau is chopped down and concedes the penalty for holding on to the ball.

Ulster fans don't need reminding about what Piutau can do with the ball. His feet belong on Strictly.

Image source, Getty Images

Beirne wins the line-out but Tonga win it at the following ruck.

They look to move it wide but a forward pass stops them in their tracks.

Wayne Barnes blows for our first scrum.

Ireland win an early penalty as Tonga stray offside.

Sexton launches it into the beautiful French night and Ireland win the line out.

Let's goooooo!

Nial Foster
BBC Sport Northern Ireland at Stade de la Beaujoire

Fascinating atmosphere as roars from the Tongan's war dance 'Sipi Tau' reverberate around the Stade de la Beaujoire.

That dance, that moment meant everything to those that waited so long to represent their native nation. A special moment at the Rugby World Cup. A privilege to witness it against Ireland.

Image source, BBC Sport NI

I know the anthems got a bit of stick last week but that was spine-tingling stuff by both teams and fans.

We're going to have the Sipi Tau, Tonga's version of the Haka, before kick-off.

That should get the pulses racing before we get going in Nantes!

Image source, Getty Images

Chris Henry
Former Ireland flanker on BBC Radio 5 Live Sports Extra and Radio Ulster

The beauty of rugby is the culture, the band of brothers sort of thing and a lot of the island teams, this is the sort of thing is what they thrive on, that they live on, the underdogs, and they will be relishing that feeling tonight.

It's amazing how that can help teams stand up to those bigger nations. It will be interesting to see how they embrace this challenge against the number one seed.

Johnny Sexton and Ben Tameifuna lead the teams out in Nantes.

What a noise!

It's time for the anthems. First up, it's Tonga.