Postpublished at 68 mins
Wales 17-17 Scotland
Wales have another penalty after the maul was brought down illegally.
Dan Biggar kicks for touch again.
They drive for the line.
FT: Wales 20-17 Scotland at the Principality Stadium in Cardiff
Biggar's drop-goal with 10 mins left seals victory for Wales
Cuthbert try ruled out - in touch; Russell sin-binned for Scots
Four Biggar penalties plus Francis try for Wales
Four Russell penalties & Graham try for Scots
Ceri Coleman-Phillips
Wales 17-17 Scotland
Wales have another penalty after the maul was brought down illegally.
Dan Biggar kicks for touch again.
They drive for the line.
Wales 17-17 Scotland
The Scotland fly-half is shown a yellow card and Wales have the penalty.
Dan Biggar kicks to touch.
Wales 17-17 Scotland
Andy Nicol
Former Scotland scrum-half on BBC One
George Turner - it's a fine line.
He got on the ball, got cleared out and the referee penalised him.
That discipline is costing Scotland at the moment.
Wales 17-17 Scotland
Alex Cutbert is so close to getting in the corner, but he's just in touch.
Finn Russell is under the spotlight now for a deliberate knock-on in the build-up play.
Wales 17-17 Scotland
Amid all the changes, Wales are awarded a penalty.
Dan Biggar hits the post from 40m out and Wales regather the ball.
Wales 17-17 Scotland
Dyddgu Hywel
Former Wales full-back on BBC Radio Cymru
Wales need to up the tempo of this game and bring on fresh legs like Dewi Lake and Gareth Thomas.
Wales 17-17 Scotland
Pierre Schoeman didn't get much of a rest, he's back on in the front row after Rory Sutherland took a knock.
Debutant Rory Darge is also on the field with Jonny Gray departing and Sam Skinner moving into the second row.
Wales 17-17 Scotland
Andy Nicol
Former Scotland scrum-half on BBC One
Much better line speed from Wales this week - they have been much more aggressive in defence.
The whole nation wanted a reaction and they have had it.
Wales 17-17 Scotland
Emyr Lewis
Former Wales flanker on BBC Radio Cymru
Great work from the two Welsh centres, Watkin with the tackle and Tompkins to win the ball.
Wales 17-17 Scotland
Wales' try scorer Tomos Francis is off and Dillon Lewis comes into the front row and straight into a scrum.
Wales 17-17 Scotland
Wales have won a crucial turnover.
Nick Tompkins emerges as the hero and is congratulated by his team mates.
Wales 17-17 Scotland
Andy Nicol
Former Scotland scrum-half on BBC One
Whichever team has the best discipline in the last 22 minutes - that team wins the game.
Wales 17-17 Scotland
Dyddgu Hywel
Former Wales full-back on BBC Radio Cymru
It's been a tiring game in attack and defence for the players but Wales have strength on the bench with Callum Sheedy and Jonathan Davies and Gareth Davies who can come on.
Wales 17-17 Scotland
Ross Moriarty's shift is over.
He's replaced by Aaron Wainwright at number eight.
Wales 17-17 Scotland
Sam Warburton
Former Wales captain on BBC One
It's another penalty awarded to Wales after multi-phase.
There is an enormous difference this week with the amount of ball-carrying.
The carrying from the Welsh pack has been 100% better than last week and it is making a big difference.
Wales 17-17 Scotland
Wales go back for the penalty and we're back level.
Wales 14-17 Scotland
Jac Morgan makes a superb break for Wales before Dan Biggar looks for Louis Rees-Zammit on the wing.
He takes the kick in the air but it doesn't look like he's grounded the ball.
Wales 14-17 Scotland
Eddie Butler
Six Nations commentator on BBC One
Dan Biggar kicks and there is a reaction. He felt that.
Wales 14-17 Scotland
Liam Williams is down for treatment after a late hit from Magnus Bradbury.
He looks OK and is straight back into the action.
Wales 14-17 Scotland
It's all getting a bit messy now as Finn Russell and Dan Biggar exchange kicks.
Russell puts his too far and Wales have a goaline dropout.