Paul O'Connell
Former Ireland captain at Murrayfield

Ireland don't always play amazing rugby but they have 'quick ball'. You can play how you want when you play 'quick ball' like this. 

Sean O'Brien stomping though, nostrils flaring, thighs thundering.

He is hauled down. And a superb bit of salvage from replacement John Barclay who snaffles a turnover over the top of the tackled Jamie Heaslip.

Scotland surviving by their wits and the quick of their fingernails.

The Scottish props may have struggled in the scrum in the first half but Alan Dell and Zander Fagerson have contributed 17 tackles with just one miss around the park.

A couple of crossed wires as Scotland show a little more ambition and Ireland pounce on the loose ball. 

Keith Earls almost worms his way through a gap and into fresh air.

Scotland scampering back into position.

Image source, AP

Ireland have cleared out of their 22m, but Scotland are marching forward once more.

Slow, steady phases, high on forward muscle and low on risk.

Ireland may behind on the scoreboard but they have enjoyed 63% of possession compared to Scotland's 37%.

Will that become more significant as the game wears on?

Rory Lawson
Former Scotland captain on BBC Radio 5 live sports extra

What a kick into the corner to put Scotland on the front foot. That was wonderful from Duncan Weir.

Sean Maitland with a good take from a box kick and then Scotland's Duncan Weir - still on while Finn Russell has an head injury assessment - rifles a superb kick into the corner.

That will be the last bit of Weir's cameo.

Russell is back into the fray.

Image source, AP

Andy Nicol
Former Scotland international at Murrayfield

Ireland fully deserved that. They've totally dominated the first seven minutes of this second half.

Gordon D'Arcy
Former Ireland international on BBC Radio 5 live sports extra

I really did worry Ireland had blown that opportunity when the ball came out of the scrum, but that is what Iain Henderson brings.

He is one of those players where you think you have him, but his power is incredible.

Scotland are still standing firm. Conor Murray held up just short...

Scotland pack down hard, tightening the binds.

Conor Murray puts the ball in. Scotland don't budge up front.

Murray spins the ball out wide.

Scotland bring up 100 tackles early in the second half. Ireland sitting on 57

Gordon D'Arcy
Former Ireland international on BBC Radio 5 live sports extra

I think Rory Best is going to be in the referee's ear now, they are setting their stall out and going for a push-over try.

Andy Nicol
Former Scotland international at Murrayfield

Tell you what Scotland need to be careful - that's nine penalties they have conceded. They are very nearly in yellow card territory. 

Finn Russell is heading off the pitch for a head injury assessment.

Duncan Weir is coming on to fill in in his place.

Ireland are still knocking.

Iain Henderson hauled down short.

Romain Poite calls it back for a penalty infringement by Scotland.

Rory Best calls his pack forward and asks for the scrum.

Definite shove-over territory.

Ireland are barging up into the 22. CJ Stander and Sean O'Brien doing some hard yards.

Jack McGrath takes the visitors up to within 10m.