From the line-out midway between the Glasgow 10 and 22m, Scarlets look to Hadleigh Parkes to crash up in the midfield but he is nailed by Callum Gibbins.

They hold onto possession and for a moment Glasgow look short of numbers but the pass to wing Tom Prydie is wayward and the ball goes into touch.

On his final Scotstoun appearance for Glasgow, Finn Russell gets us under way.

And Glasgow captain Ryan Wilson takes the man out in the air and concedes a penalty within 5 seconds!

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The teams are out, the sun is shining and we are just about ready to go at Scotstoun.

The two head coaches spoke to BBC Alba before the game.

Glasgow Warriors Dave Rennie said: "We're going to have to be good tonight. But we're confident.

"We've freshened the bodies up. We've had a lot of time to get clarity on what we need to do.

"It should be hell of a game, two really positive sides. We've got a good side on the field tonight but so do they."

Scarlets counterpart Wayne Pivac brushed off claims tonight is a head to head between him and Rennie. He said: "Tonight's all about Scarlets and 12 months of hard work.

"The conditions, they couldn't be any better."

How do you see this one unfolding?

Get involved by tweeting @BBCSportScot or @BBCAndyBurke.

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Colin Gregor
Former Scotland sevens captain on Radio Scotland

“Glasgow will just have to get on with it. The good thing is in Ruaridh Jackson they’ve got a quality replacement for Stuart Hogg. Not quite the same set the pitch alight, counter-attacking threat, but a real quality player.

"Glasgow’s squad is strong enough to deal with this. They have lost a world-class operator, but they just have to go and show what the character of this squad is all about.”

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"Who's favourite? That's a hard one to call. We have pedigree as champions, but so do they.

"Playing expansive, off-loading rugby is in the DNA of both clubs. Glasgow want to throw it around and so do we.

"Playing the percentages doesn't hold much interest to either of us. Nine months of matches and it comes down to this."

Scotland captain John Barclay returns to old club Glasgow in the red of Scarlets this evening. He joins Edinburgh this summer, so tonight could be his last game for the Welsh region if they fail to make the Pro14 final.

Read Barclay's BBC Sport column here.

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Huge blow for Glasgow Warriors as full-back Stuart Hogg drops out of the team reportedly due to illness. He is replaced by Ruaridh Jackson with Lee Jones coming on to the bench.

Peter Wright
Former Scotland & Lions prop on BBC Radio Scotland

“Scarlets will come here knowing they can win. They’ve done it before - they won last year’s semi-final and final away from home.

"Looking at both teams, I think it will be one of the greatest games of the season. I don’t think it will be an anti-climax. The way Scarlets play, the way Glasgow play, they both play rugby.

"Absolutely perfect conditions. I spoke to a few Scarlets supporters outside and they are absolutely confident they can come up and win this game.”

Scotstoun is basking in the Glasgow sunshine ahead of tonight's Warriors v Scarlets match.It is the calm before the storm. It's about to get a lot busier and louder as kick-off approaches.

Tonight's semi-final pits two highly-rated Kiwi coaches against each other - Glasgow's Dave Rennie and Scarlets' Wayne Pivac.

Pivac says he has the "utmost respect" for his countryman.

Glasgow head coach Dave Rennie has elected to leave some big names out of his matchday squad.

Scotland stars Ali Price, Alex Dunbar and Huw Jones all find themselves on the outside looking in despite being fit and available. Their international team-mates Tommy Seymour, Jonny Gray and Jamie Bhatti all return to the side.

Scarlets are without Wales and Lions international Leigh Halfpenny, with Johnny McNicholl coming in at full-back having not played since February.

Aaron Shingler comes into the back row, with Tadhg Beirne switching to lock and Lewis Rawlins dropping to the bench.

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Well this is a tasty match-up this evening.

Two of Europe's most exciting teams go head-to-head at Scotstoun for a place in the Pro14 final.

Glasgow have been formidable at home this season, winning all 10 league matches on their own patch and claiming try bonus points in nine of them.

However, Scarlets won the title last season the hard way, beating Leinster away in the semi-final before returning to Dublin to beat Munster in the final.

They also have good memories of their most recent meeting with Warriors, running out comfortable 26-8 winners at Parc y Scarlets last month.

As Dave Rennie said in the build-up, it is do or die now for both sides. The winners will go on to face Leinster or Munster in the final, while for the losers there is no tomorrow, their season will end tonight.

Image source, SNS