Huge cheers from the Edinburgh pack after Liam McConnell does brilliantly at the breakdown to win a penalty.

Glasgow were edging closer and closer to the try line, so that's a big play.

Edinburgh have conceded a string of penalties and Dylan Richardson is given a final warning by referee Hollie Davidson.

There's a bit of a melee here after a clearout from the side by Edinburgh flanker Dylan Richardson and referee Hollie Davidson gives both sets of players a stern talking to.

Scenes no-one* wants to see.

*Everyone.

Glasgow's attacking lineout comes to nothing and a booming kick from Wes Goosen takes Edinburgh downfield.

Glasgow have a penalty in a very kickable spot, but unlike Edinburgh, they opt to go to the corner.

It's been a bruising start at Murrayfield.

Scott Cummings is on for his 150th Glasgow appearance as Alex Samuel heads off for a head injury assessment.

Darcy Graham is fine to continue for Edinburgh after a wee bit of treatment.

Glasgow's first real attack ends with a stabbed kick in behind and it looks dangerous for a split second before rolling behind.

Edinburgh's fly-half splits the posts and the home side lead.

Image source, SNS

A big cheer from the home supporters as Edinburgh flanker Dylan Richardson forces a breakdown penalty.

Cammy Scott calls for his kicking tee.

Edinburgh can't capitalise on their promising field position - the ball goes forwards and Glasgow clear their lines.

Andy Burke
BBC Sport Scotland at Murrayfield

We've already seen one classic in Edinburgh today along at Easter Road. What we would give for similar drama here at Murrayfield.

The word all week from the Edinburgh camp has been about the need to fire more shots in attack, while Glasgow have won just one of their past 10 visits to the capital.

Let's hope it's a significant step up from the first leg.

An early mistake from Glasgow full-back Ollie Smith, who kicks out on the full after the ball was passed back into the 22.

Edinburgh duly have a lineout in a very promising position.

Cammy Scott kicks high into the capital sky and we are off...

Chris Paterson
Former Scotland international on Premier Sports

You have to think more about yourself than the opposition in these games.

The one thing Edinburgh can't do is think about the 12-point deficit.

Ryan Wilson
Former Glasgow Warriors player on Premier Sports

Edinburgh have got to fire a shot. How they do that is a different question.

Glasgow head coach Franco Smith has been explaining his selection to Premier Sports:

"The fresh bodies will hopefully give us more energy from the start.

"It's also with an eye on next week and the week after - to give guys opportunities and get proper rugby under their belt."

John Barclay
Former Scotland captain on Premier Sports

I look at that Glasgow bench - there is so much there, particularly up front.

Image source, SNS

Glasgow head coach Franco Smith has made six changes to his starting pack for today's second leg.

While Smith has kept the same back-line - meaning captain Kyle Steyn will make his 100th appearance for the club - he has reshuffled his entire front row and second row, with back-rowers Matt Fagerson and Jack Dempsey the only two forwards remaining in the starting XV.

Senior players Zander Fagerson, Gregor Brown and Scott Cummings, who stands to make his 150th appearance for Glasgow on Saturday, are rotated to the bench.

Here they come.

Image source, SNS

Image source, SNS

Image source, SNS

Edinburgh originally made three changes to their XV from last weekend, with hooker Ewan Ashman and centre Piers O'Conor both missing out with concussion.

Prop Ollie Blyth-Lafferty, 19, drops to the bench where he is joined by his 21-year-old brother Jerry, who is set for his professional debut.

Harri Morris and Paul Hill come into the front row, while James Lang returns from injury to take O'Conor's place in midfield.

This morning they have been forced into two further tweaks. Wing Duhan van der Merwe and prop Boan Venter are out injured and have been replaced by Lewis Wells and Mikey Jones.