Steff Hughes puts a lovely little slide-rule kick through the on-rushing Scarlets defence that bounces up perfectly for Joe Westwood.

The Wales Under-20s international is clear but is chased down by Ryan Conbeer.

Still surprised that Conbeer will be out of the Scarlets after today.

Dragons are chucking it around and are trying to end the campaign on a bright note.

But unfortunately it's 40 minutes too late.

On the hour mark and here come all the changes.

Wyn Jones, Sam Wainwright and Macs Page are all for Scarlets.

George Nott replaces Matthew Screech for Dragons.

Sam Costelow is having a funny old game.

His kicking has been really scruffy, both off the tee and out of hand.

And his legs just seemed to give up on him then as he broke through.

But you can see his head for the game is totally switched on.

Ian Gough
Former Wales international on BBC Radio Wales

I thought Sam Costelow was going to go under the posts himself, but he got caught in the quicksand!

He sort of ran himself into a hole, but they managed to keep the ball alive and they had players lining up on the left to take that over.

The Dragons seem to be imploding.

Dai Flanagan changes his entire front-row in one move.

James Benjamin, Rodrigo Martinez and Dmitri Arhip all on.

Ian Gough
Former Wales international on BBC Radio Wales

You can see the body language of the Scarlets, they are in control of this game now, the confidence seems to be back with them.

It's crucial Dragons score next if they want to stay in this game.

Gareth Davies and Carwyn Tuipulotu are both done for the day.

Keiran Hardy comes on for his last Scarlets appearance before joining Ospreys in the summer.

Jarrod Taylor on at number eight.

Young Dragons hooker Brodie Coghlan showing he's a dab-hand at the breakdown as well.

Big day for the youngster who got the nod after Elliot Dee's injury.

The Scarlets defenders are just lining up their men at the moment.

Taine Plumtree hammers Will Reed before Ryan Elias snags Rhodri Jones - with Dan Davis straight onto the ball.

Bit too easy for Scarlets.

Chris Hollis almost gets over with a swift response for Dragons but he is just held up short.

Story of the match so far for the Men of Gwent.

Gareth Delve
Former Wales international on BBC Radio Wales

I found him [Sam Costelow] a bit unconvincing in that first half.

Kicking out of hand, a couple of opportunities missed, even at goal.

It's great to see him returning for this half but I think there's still quite a bit of work to do to hold that [Wales] 10 jersey.

Great smother tackle by Tomi Lewis.

I said it before and I'll say it again... he's impressed over recent weeks.

Aaron Wainwright has not made it out for the second half.

He was limping towards the end of the first half... and Warren Gatland will really be hoping he is not a concern for the summer.

Dan Lydiate takes his place.

Sam Costelow is also back on for Scarlets.

And we're under way again at Cardiff City Stadium

Image source, Huw Evans Picture Agency

Dragons hope Wales prop Leon Brown will sign a new contract and be fully fit for next season.

Brown, 27, last played in the Six Nations opening game against Scotland in February after playing only four matches for Dragons beforehand.

The tight-head is out of contract this summer, but has not been listed among the Rodney Parade leavers and talks are continuing about a new deal.

Brown is currently sidelined through what the Dragons have called a "knock" after previously suffering a long-standing neck problem.

He is set to miss Wales' summer programme as Warren Gatland's side face South Africa at Twickenham on 22 June and travel to play Australia in a two-Test series in July.

"We see his long-term future with us," said Dragons head coach Dai Flanagan.

"We have taken a long road to make sure we do things right. I am relatively new to dealing with Leon, but he has had a bitty last couple of years so we just need to make sure that when he does return to playing rugby, hopefully in Gwent, he is fully ready to go.

Gareth Griffiths
BBC Sport Wales at Cardiff City Stadium

Scarlets are well worth their 17-3 half-time lead with tries from prop Kemsley Mathias and flanker Dan Davis.

This is despite being down to 14 men for 10 minutes with centre Eddie James yellow-carded for a tackle on opposite number Aneurin Owen.

Wales head coach Warren Gatland will be slightly concerned to see a limping Dragons number eight Aaron Wainwright and will be wondering whether he will come back out for the second half, while Scarlets fly-half Sam Costelow went off for a head injury assessment (HIA).

Dragons had a brief spell of pressure but have been second best.