Tomi Lewis
Game on!
Breathless stuff as Scarlets hit back with a try of their own. The perfect response from Scarlets to keep them in the game.
A break from Ioan Lloyd opens up some space and he supplies the ball to winger Tomi Lewis who sprints over.
Sam Costelow nails the conversion to bring his side within eleven points with just over ten minutes to go...
Scarlets 13-31 Ulster
Tony McWhirter
1999 Ulster European Cup winner on BBC Sounds
That's a huge try for Ulster.
First and most importantly, it's the bonus point and should they hold on to win five points.
But secondly, it's the perfect riposte after Scarlets scored.
Jacob Stockdale
End-to-end stuff!
Jacob starts and finishes the passage of play which results in the crucial fourth try.
The winger takes the ball well from the restart but is taken out illegally by Ioan Nicholas.
Ulster work their way up the pitch before the ball is sent wide to Stockdale who finishes in the corner.
John Cooney maintains his perfect record from the kicking tee.
Image source, GettyCarwyn Tuipulotu
Try for Scarlets!
The Welsh side continue to battle their way back into the game and it is number eight Carwyn Tuipulotu who powers his way over from close-range.
Sam Costelow adds the extras to set the stage for a dramatic final quarter.
Scarlets 6-24 Ulster
Scarlet's lineout is misfiring which is continuing to cost them momentum.
A good attacking platform is squandered and Ulster have the scrum as they look to clear their lines.
Scarlets 6-24 Ulster
Tony McWhirter
1999 Ulster European Cup winner on BBC Sounds
Simple route one from Ulster
It's not over-complicated. Pick and go rugby.
Once it gets to the line, it's just weight of numbers.
Hard yards but, my goodness, it's effective.
David McCann
Patient build-up gets Ulster within inches of the Scarlet's line and flanker Dave McCann powers his way over from close distance for his side's third try.
John Cooney's conversion means his side now lead by 18 points, but Ulster will now want the bonus point.
Scarlets 6-17 Ulster
Scarlets now under some pressure as Ulster have a lineout deep in the Welsh side's half.
A series of powerful carries from the men in white has them within inches of the Scarlet's line. Can they make this spell of territory count?
Scarlets 6-17 Ulster
Tony McWhirter
1999 Ulster European Cup winner on BBC Sounds
Don't underestimate the job James French did at scrum-time there.
It was a really good shift to hold that scrum and it meant the Llanelli back-row had to hold in.
That's a big effort so some kudos for him.
Nick Timoney
Nick Timoney powers his way over from the base of the scrum.
The number eight picks and goes from the base of the scrum and demonstrates his power, riding two tackles before crashing his way over.
John Cooney is accurate from the kicking tee once again to extend his side's lead.
Scarlets 6-10 Ulster
Johnny Williams throws a pass but an excellent read for an intercept from Mike Lowry sends the winger down the wing.
His grubber kick is carried over and Ulster now have the scrum five metres out...
Scarlets 6-10 Ulster
Tony McWhirter
1999 Ulster European Cup winner on BBC Sounds
How many times have we seen outside backs drop the ball under pressure?
Quality top-line players, you can forgive one but four or five?
It just takes pressure off the opposition.
Stuart McCloskey
Ulster try!
A perfect start to the second half for the Irish side as they make the most of their two-man advantage.
Scarlets lineout misfires and John Cooney finds centre Stuart McCloskey who uses his agility to scythe through the Welsh side's defence and touches down under the posts.
John Cooney adds the extras to extend his side's lead.
Image source, Getty ImagesScarlets 6-3 Ulster
A low-scoring first half, but plenty of talking points.
Scarlets dominated the opening quarter, but Ulster have grown into the game and now have the ascendency with a two-man advantage owing to poor discipline from the Welsh side.
Richie Murphy's men have been held up three times in the first half and will be looking to take advantage of their extra two men after the break.
Cormac Izuchukwu
The second-row is held up over the line for the third time this half.
Frustrating for Ulster but great defence from the Welsh side to maintain their narrow lead as the referee blows his whistle to end the half.
Scarlets 6-3 Ulster
Scrum-half Gareth Davies is shown a yellow card for a trip and Ulster have the penalty.
Can they make their two-man advantage count before the break?
Scarlets 6-3 Ulster
The clock is in the red now as we come to the end of the first half.
The match officials are taking several looks at a tackle from Gareth Davies on Eric O'Sullivan that may have been a trip...
Is a second yellow card coming for the Scarlets?
Cormac Izuchukwu
Ulster once again get over the line but Cormac Izuchukwu has been held up for the second time in the last ten minutes.
Scarlets showing some stubborn defence and they attempt to relive some pressure with a drop-out.
Scarlets 6-3 Ulster
Tony McWhirter
1999 Ulster European Cup winner on BBC Sounds
There's been a catalogue of professional fouls over the last three or four minutes.
[Plumtree is] an international footballer, he knows better than that.
Scarlets 6-3 Ulster
The referee shows a yellow card to flanker Taine Plumtree who is deemed to have cynically knocked the ball out of John Cooney's hands.
Scarlets will be a man down for the next ten minutes.