Super League leaders St Helens to face Warrington in Challenge Cup final
Saints beat brave Halifax 26-2 in second semi-final
Tries from Roby, Peyroux, Lomax and Fages break down second-tier side
Warrington beat Hull 22-14 in first semi-final earlier on Saturday
Final to be played at Wembley on 24 August
Theo Fages, con Danny Richardson
Just moments after Halifax went looking for their first try, St Helens have their easiest try of the game to surely put this result beyond doubt.
Theo Fages strolls over, but it is the kick from James Roby - yet another masterfully executed piece of skill by the captain - that bamboozles the Fax defence.
St Helens 20-2 Halifax
St Helens now looking to pile on the points.
Kevin Naiqama has his sights set on the line on the right edge.
He closes in, the Fiji international is about to swoop... but Scott Grix is there for Halifax with another try-saving tackle! Immense from from the the 35-year-old former Huddersfield and Wakefield man.
Jonny Lomax, con Danny Richardson
Saints are over for their third!
No television replays are needed this time as Jonny Lomax slides over, but that is a try once again finely crafted by James Roby.
He shifts out of dummy half, finds Danny Richardson who bobs and weaves to stay out of the clutches of the Halifax defence before dishing the ball off to Lomax on his right.
Despite fumbling the pass, Lomax controls it to dash over.
Lomax 'cruises' through to score and increase St Helens' lead
St Helens 14-2 Halifax
Halifax sticking to their 'try anything' approach, this time with Steve Tyrer kicking out of dummy half to catch St Helens on the hop.
They make the metres, as it is a peach of a kick, but they fail to cause any damage.
St Helens 14-2 Halifax
John Kear
Wales & Bradford Bulls coach on BBC Two
St Helens have upped the ante and intensity, the focus is there.
They can sense that they can break this Halifax team and start booking their hotel for Wembley.
St Helens 14-2 Halifax
Another drop-out, more desperate defending by Halifax!
It is a kick from James Roby that has the Championship side scrambling this time...
This time, however, St Helens attack is stunted as Jonny Lomax loses the ball.
St Helens 14-2 Halifax
Milly McEvoy
BBC Sport at University of Bolton Stadium
Image source, Rex FeaturesThat St Helens try hasn't knocked the spirit of the Halifax fans who seem to be thoroughly enjoying their day out. Before the Saints scored they were even singing 'Que Sera Sera'.
It's perhaps unlikely they'll reach Wembley now but Fax could justify celebrating the fact that they look to have avoided the heaviest defeat in a Challenge Cup semi-final, which was what most people were expecting to happen in this game.
That unwanted record looks set to stay with Bradford who lost 71-10 to Wigan in 1992.
St Helens 14-2 Halifax
The screws are being turned by St Helens now.
Mark Percival squeezes a kick though, which Danny Richardson chases. The ball is bundled dead and Fax will have to restart with a drop-out...
St Helens 14-2 Halifax
There is a strut about St Helens now, as they attack with the confidence expected of them today.
A delicious kick from James Roby is almost a 40/20, but the bounce of the ball just holds it up long enough for Steve Tyrer to get to it first to defuse the danger.
#bbcrl
Jason Hardy: He's lost it!! No try all day long. Very, very easy decision that.
Katie: He dropped it! Come on Halifax! Time for a try!
Some of you clearly aren't convinced Dom Peyroux got that down cleanly!
St Helens 14-2 Halifax
For a moment, St Helens looked as if they were off for a third try.
Kevin Naiqama get a hand in to strip Stephen Tyrer of the ball, but he knocks on in the process.
Saints haven't had that element of dynamism around them today, but this lead seems to have sparked them to life.
Dom Peyroux, con Danny Richardson
The lead is stretched to 12 points thanks to that fine finish by Dom Peyroux.
The second-rower powers over after taking a short ball and contorts his body enough to get the ball down.
It is a try made of power and poise.
Danny Richardson again adds the extras.
Are St Helens over again through Dom Peyroux this time?
St Helens 8-2 Halifax
The ball is launched by Halifax on the last and they scramble bodies up field...
Ed Barber tries to keep it alive, but Tommy Makinson comes away with it for St Helens and they are away on the counter attack.
#bbcrl
Shaun: Great game keep it going Halifax.
Paul Walker: Was at the 1987 final. Good to see Halifax in this game.
St Helens 8-2 Halifax
St Helens get through their first set and it is workmanlike... they are not rushing to dazzle their Championship opponents.
Halifax, however, try it on and kick early when they get the ball back. It's a poor effort... but worth trying it as they chase the game.
St Helens 8-2 Halifax
Image source, Rex FeaturesHalifax get through the first set of the second half with supreme confidence.
James Saltonstall charges up the middle, the Championship side are working St Helens. The ball is kicked on the last and St Helens have to start deep in their own territory.
The first half, I'd say, was no fluke...
St Helens 8-2 Halifax
St Helens get things under way!
HT: St Helens 8-2 Halifax
The players have again emerged.
Do Halifax have the energy to keep it up and produce a truly epic upset? Or will St Helens take this half-time lead and run with it?
Stay tuned...
HT: ST Helens 8-2 Halifax
Captain Roby gives St Helens their breakthrough
And this is the moment that separates these two sides.
For 40 minutes Halifax out-enthused Super League leaders St Helens, but what the Championship side don't have is a man of James Roby's prestige. The captain took it upon himself to grab the game's first try.