Glasgow come clear from the scrum but it's back in Leinster hands and they're itching to get back in the 22 one again.

Relentless from the hosts.

Andy Burke
BBC Sport Scotland at Aviva Stadium

That's a let-off for Glasgow, though the correct decision.

Leinster have stepped it up in these last few minutes and asserted their dominance in the first scrum.

Warriors have defended well so far.

Image source, Inpho

Sam Prendergast was about to slot over the conversion when Luke Pearce was called to look at the screen.

Ringrose lost it in the tackle and managed to palm it back to Barrett, but because he didn't fully regather control it's deemed to have gone forward.

John Barclay
Former Scotland captain on Premier Sports

Both sides are going at it.

All of a sudden, Leinster are on the edge of the Glasgow 22 with the penalty advantage.

Luke Pearce pulls play back, and Sam Prendergast sticks it into the corner.

Ian Madigan
Former Ireland fly-half on Premier Sports

It's glorious by Lowe. He's not short of confidence.

It's beautiful rugby by Leinster as it's worked through the backline to James Lowe on the lift, who looks to beat Kyle Rowe and then pulls off a ridiculous piece of skill to keep the ball in play.

Hugo Keenan gathers and makes a couple more metres, but Glasgow pinch it at the ruck and can clear.

So close to the intercept by Jamie Dobie.

Leinster looked to play it through the hands and Jordie Barrett fizzed it wide past several players.

Dobie read it but just couldn't get his hands on it.

If he gathered that he was in.

Both sides are firing offloads away like they are going out of business. Great to watch.

This time Fagerson gets too much on it for Rory Darge out wide and it's into touch.

Leinster give away the first penalty of the game from the line-out for hitting Matt Fagerson too early.

It's sent into the Leinster half by Hastings.

Wow, that's a meeting of minds as Tadhg Furlong clatters into Sam Talakai in open play.

I felt that shudder here!

Leinster recycle and look to play it to Jordie Barrett, but he can't hold it and it's hammered clear by Jamie Dobie.

Glasgow gather the ball from the kick-off and George Horne blasts it into touch just beyond the 10 metre line.

Sam Prendergast sends the ball into the glorious Dublin sky and we're under way!

Luke Pearce is the man in the middle tonight, by the way.

Kyle Steyn and Jack Conan lead out the teams at a sun-soaked Aviva Stadium.

There's good noise in Dublin. They are expecting about 35,000 tonight.

Image source, Inpho

We're edging closer to kick-off and I don't know about you, but I can't wait for this.

What a night for rugby.

The name's Smith, Franco Smith.

He doesn't like it shaken or stirred, but he would love a win in Dublin tonight.

Image source, Getty Images

Andy Burke
BBC Sport Scotland at Aviva Stadium

The sun is setting over the Aviva Stadium after the most gorgeous Dublin spring day, the perfect setting for a big European showdown.

The Leinster fans arriving here are expecting nothing but a home win, possibly with a bit to spare.

Ordinarily Glasgow Warriors, the URC champions, would present a significant threat to Leinster's Champions Cup ambitions, but injuries have taken their toll on Franco Smith's side.

Sione Tuipulotu, Huw Jones, Zander Fagerson, Scott Cummings and Jack Dempsey - all key figures in the starting 15 - are out injured, and influential back-row Henco Venter is suspended.

In contrast, the hosts have such strength in depth they can afford to start Andrew Porter, Dan Sheehan and Caelan Doris - three Lions certainties this summer - from the bench.

If Glasgow somehow manage to spring a shock here, it would quite possibly be their greatest ever result.

Weather update: It's glorious in Dublin.

Image source, Getty Images

Image source, Getty Images

Leinster are favourites to go on and lift the trophy, a status underlined by a crushing 10-try victory over Harlequins in the last round but Jordie Barrett says "we have to get our jobs right this weekend or there's no more European rugby for us".

"Glasgow are a good side. They play a lot of rugby, a very attacking side. They're tough as well, as they showed in the weekend against Leicester," said Barrett.

"So it's going to be a challenge. They're a very strong one-to-eight and they play with a lot of ball and kick the least in the URC.

"They're a confident side, they do back their ability. But, look, we're right up for the challenge.

"We respect them as an outfit. But we feel like we're heading in the right direction here too."