Nick Timoney doesn't ground the ball however the referee has brought it back for an earlier offside penalty and Ulster will have another tap-and-go in front of the posts...

Ulster have a lineout and sling the ball out side after a couple of strong carries.

The ball spills loose and it's back for a penalty in front of the posts.

The referee wants to take a look at an earlier attempt to ground the ball by Nick Timoney.

It doesn't look like there's conclusive evidence...

No try.

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Ioan Lloyd's kick clear goes straight into the arms of Jacob Stockdale who runs it back hard.

Ulster with a series of good carries.

However, play has now stopped as there is an injury to a Scarlets player.

The match officials are looking at a clash of heads to see if there was any foul play.

Penalty to Ulster for a high tackle from Macs Page on Jacob Stockdale.

Ulster with a great attacking opportunity after some great interplay between Stuart McCloskey and Stewart Moore, but a knock on from Jacob Stockdale halts their progress.

Scrum to Scarlets inside their own 22.

Ulster concede a penalty in a kickable position and Ioan Lloyd slots his attempt to give his side a narrow lead.

The back-and-forth nature of the game continues...

Jack Murphy makes no mistake with a straightforward kick in front of the posts to put his side ahead.

Ulster attacking with intent and a massive carry from centre, Stuart McCloskey.

However, the referee has brought it back for a penalty and Jack Murphy has a chance to put his side ahead.

Jack Murphy kicks deep into the opposition half as we return to action here in Belfast.

The hosts manage to turn the ball over and a grubber kick from Stewart Moore into Scarlets' backfield forces Ioan Nicholas to kick into touch and Ulster have the lineout.

Scarlets lead Ulster at the break by two points in a back-and-forth clash in Belfast.

Two tries for Scarlets in the opening exchanges left the hosts reeling.

However, Richie Murphy's side have clawed their way back into the game with a try from Nick Timoney and Jack Murphy's accuracy from the kicking tee, slotting a conversion and two penalties.

A penalty for the Welsh side just before the break allowed Ioan Lloyd to nudge the visitors ahead.

With not much between the two sides at the interval, an exciting second half is in store!

Ioan Lloyd slots a penalty to put his side ahead just before the break.

Penalty to Scarlets and the final play of the half will be a penalty attempt from Ioan Lloyd.

Jack Murphy nails the kick from distance!

Ulster edge ahead just before half-time.

Ulster 's lineout is scrappy but Matthew Dalton gathers the ball and surges forward.

Mike Lowry is tackled high and the hosts are awarded a penalty.

It's a long way out but Jack Murphy does not hesitate in pointing to the posts.

He lines the ball up just in front of the halfway line...

The ball is knocked on by Scarlets just outside Ulster's 22 and the hosts are off the hook.

Scrum to Ulster and they will look to clear their lines.

Jacob Stockdale with a low, driven kick which bounces into touch.

Scarlets have the lineout just inside their own half.

It's a scrum to Scarlets on the halfway line.

There is some difficulty getting the scrum set.

The visitors get the ball away but knock the ball on but it's brought back by the referee for a scrum penalty.

Jack Murphy makes no mistake from the kicking tee and gives the scoreboard a different complexion, with Ulster now trailing by two points.

Ulster have a lineout just inside Scarlets' half.

Really strong carry from James Hume and another from Nick Timoney.

The hosts have some momentum now as they win another penalty.

Jack Murphy points to the posts.

Ulster now attacking with intent and making some progress as they work their way just beyond Scarlets' 22.

A penalty to Ulster for a breakdown infringement and Jack Murphy kicks into the corner.

It's a great opportunity for Ulster - can they capitalise?

James McNabney knocks on a pass from Jacob Stockdale and it's a scrum to Scarlets.

The visitors go wide but knock the ball on the left wing and it will be Ulster's put-in to the scrum.

Another massive carry from James McNabney puts Ulster on the front foot.

Can they make this spell of possession and territory count?