Ulster kick off and are immediately outside the Glasgow 22-metre line.

There was a lot of noise when Ulster came on to the field. It is massive as Al Kellock leads out Glasgow.

Ulster take to the field at Scotstoun sporting their all white strip with red flashes. The atmosphere is building.

Glasgow have not lost in the Pro12 at Scotstoun since autumn 2013. That's the task awaiting Ulster tonight.

"Ruan Pienaar has probably done more damage to Glasgow than any other player in recent years. If Warriors can stop Pienaar, that is the key to beating Ulster."

"The players are in a very good place and we expect a very good performance from them.

"It is a different game from last week and a semi-final.

"It will be about whoever is on the top of their game and is playing their best right to the final whistle.

"There probably is an expectation from our supporters, but I'm sure Ulster will think they are favourites given their quality."

Remember there is live commentary on BBC Radio Scotland 810MW and you can see all the action from Scotstoun on both the BBC Sport Scotland website and BBC Alba.

Tom English
BBC Scotland at Scotstoun

"I am slightly surprised that Rob Harley has not been picked. as it is an impressive Ulster pack. Rob Harley's capacity to mess people around is vital in a game like this. In matches like this, he usually delivers and it's a surprise for me that he is not even on the bench."

Before that news, the big talking point in the Warriors line-up was the absence of Scotland flanker Rob Harley from even the bench.

There are question marks about the participation of Glasgow winger Tommy Seymour as he appeared to signal a problem with his hip during the warm-up. We'll give you more on that in the lead up to the kick-off in around 15 minutes time.

Glasgow Warriors: Stuart Hogg, Tommy Seymour, Richie Vernon, Peter Horne, Niko Matawalu, Finn Russell, Henry Pyrgos, Ryan Grant, Fraser Brown, Rossouw de Klerk, Jonny Gray, Al Kellock (captain), Josh Strauss, Chris Fusaro, Adam Ashe

Replacements: Pat MacArthur, Gordon Reid, Mike Cusack, Leone Nakarawa, Ryan Wilson, Duncan Weir, Sean Lamont, DTH van der Merwe

Ulster: Louis Ludik, Tommy Bowe, Jared Payne, Darren Cave, Craig Gilroy, Paddy Jackson, Ruan Pienaar, Callum Black, Rory Best (captain), Ricky Lutton, Lewis Stevenson, Dan Tuohy, Iain Henderson, Chris Henry, Roger Wilson

Replacements: Rob Herring, Andrew Warwick, Bronson Ross, Robbie Diack, Sean Reidy, Paul Marshall, Stuart McCloskey, Michael Allen

Glasgow in the last four seasons have finished fourth, third, second and now first in the Pro12 table. So their supporters will be hoping that the natural progression is to now win the final.

Glasgow finished top of the Pro12. Does that make them the best team in the league? Give us your thoughts on that, tonight's game, or any other talking points in rugby union.

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Another big motivation for Ulster is that they will have home advantage in the final against either Munster or Ospreys, who play their semi-final on Sunday. The two winners will be facing one another at Kingspan Stadium, Belfast, on Saturday 30 May.

Glasgow are seeking their second final in a row after losing to Leinster last season. It was the first time the Scots had reached that stage.

Ulster finished fourth in the Pro12 table, but head coach Neil Doak will be hoping that his strategy of conserving his top players' energies will take them to their second final in three years. They were by Leinster two seasons ago.

Glasgow beat Ulster a week ago at the same Scotstoun venue to win the right to home advantage by finishing at the top of the Pro12 table. However, the visitors have made 11 changes by bringing their main players back into the side since that 32-10 defeat.

Welcome to our live text commentary on a big night for Glasgow Warriors and Ulster as they vie for a place in the Pro12 final.