The game continues and St Helens win a penalty as Peter Mata'utia goes in late with a block.

Big opportunity for Saints here. Lachlan Coote is stood over it.

Jonathan Davies
Former Wales international on BBC One

It's all mental now. Who has the stronger mental approach.

Castleford's Gareth O'Brien is receiving treatment after a big hit, one of many we've seen in this match.

It comes after he tried to stop Mark Percival in his tracks but in the process he's come off worse.

St Helens could do with another try here to give themselves some breathing space.

Castleford are throwing everything at them right now. Saints begin another set on their 10. They need to make this count.

Blimey, as St Helens try to kick away to ease the pressure, they kick it out on the full and Castleford win back possession in the Saints half.

Yet another advantage but can they make this one count?

This match is on the knife edge.

John Kear
Wales & Bradford Bulls coach on BBC One

Image source, PA Media

This is a great game. A great, great game.

Mark Percival screams to the crowd as St Helens move Castleford in to touch as they race towards the line on the fourth tackle.

Credit where it's due, that is expert defence from Saints to thwart Castleford who should have leveraged their advantage there.

An opportunity for Castleford here as James Roby knocks on deep inside St Helens' half.

The Tigers win a set of six in a dangerous position but can they make it count?

I should point out by the way, that Joe Batchelor is back on the field for St Helens after passing his head injury assessment.

Impressive considering he looked pretty out of it early in this second half.

Joel Thompson is the latest St Helens player to come off worse from a Castleford tackle and he receives treatment after Jesse Sene-Lefao went in on him.

He's cleared to play on just before Lachlan Coote puts a kick towards goal which Niall Evalds picks up but he's brought down before he can run on the counter again.

Jonathan Davies
Former Wales international on BBC One

I thought he could have skinned him then!

Niall Evalds races upfield on the counter as Castleford look to catch out St Helens but Saints race to bring him down.

They win a set of six in response and this frantic old game continues.

Kyle: Brilliant from Jack Welsby. Fantastic player he is now and it's frightening how good he can become. He turned an awful pass into a try scoring position. Fantastic play from him.

St Helens are in the ascendancy now but where have we heard that before, eh?

I'm writing neither of these teams off in this match. More of the pitch is shaded now but the temperature is still hot hot hot.

Andrew Henderson
Warrington Wolves assistant coach on BBC Radio 5 live sports extra

Image source, Rex Features

It was a little bit ad hoc from Saints and a disappointing try for Castleford to concede as they gave away the penalty which gave Saints field position.

Andrew Henderson
Warrington Wolves assistant coach on BBC Radio 5 live sports extra

If St Helens get their act together and show some patience towards the end of their sets, I think they can take more of a stranglehold on this game.

Great stuff from Agnatius Paasi to offload to St Helens captain and try-scorer James Roby when he's in the midst of being tackled.

However, Paul McShane intercepts soon after as Castleford fight back.

Great match, this. Really hard to pin down who's going to win this.

Stu: Clear knock on. Clearly out of play. But a try?

LordGreyStoke: Don't know why it took so long, the try was obviously AOK.

Fair to say, your opinion is split.

Image source, Rex Features

For what it's worth, I don't understand the bluster about that try at all and I certainly don't understand what possessed Chris Kendall to look at it so much.

For me it's simple. Regan Grace did nothing wrong and it was a clean try.

Just get on with it. That review took nearly four minutes.