Postpublished at 43 mins
St Helens 6-7 Warrington
St Helens are beaten back in their first set.
There is a lot of intent in the way Wolves have started the second-half.
They look dangerous with the ball and bruising without it.
Watch live BBC Two coverage and listen to local BBC radio commentaries in the 'watch & listen' tab
Wigan thrash Castleford 60-6 in Sunday's first quarter-final to reach semi-final stage
Challenge Cup: St Helens v Warrington Wolves (BBC Two) Kick-off 16:30 BST
Men's and women's semi-final draw to take place at half-time of St Helens v Warrington tie
Andrew Aloia
St Helens 6-7 Warrington
St Helens are beaten back in their first set.
There is a lot of intent in the way Wolves have started the second-half.
They look dangerous with the ball and bruising without it.
St Helens 6-7 Warrington
Warrington put in solid first set to start the second half.
They chase well and have St Helens playing from deep.
St Helens 6-7 Warrington
We are back up and running at the Totally Wicked Stadium.
Who will win this one to progress to the semi-final to face Huddersfield?
Men's Challenge Cup semi-final draw
Now for the second men's Challenge Cup semi-final tie.
Huddersfield Giants will host the winner of today's quarter-final tie between St Helens and Warrington.
Men's Challenge Cup semi-final draw
The first Men's Challenge Cup semi-final tie has been drawn.
Hull KR, who avenged their 2023 final defeat by beating Leigh yesterday, will face Wigan Warriors.
Men's Challenge Cup semi-final draw
Now to the men's Challenge Cup semi-final draw...
A reminder that Hull KR, Huddersfield Giants and Wigan Warriors are already through to the last four.
Women's Challenge Cup semi-final draw
The second Women's Challenge Cup semi-final sees Wigan Warriors host Leeds Rhinos.
Women's Challenge Cup semi-final draw
Women's Challenge Cup holders St Helens will face York Valkyrie in the first tie to be drawn.
Women's Challenge Cup semi-final draw
First, we have the draw for the Women's Challenge Cup.
Leeds, St Helens, Wigan and York are all in the hat.
HT: St Helens 6-7 Warrington
While St Helens and Warrington take a much-deserved breather, our attentions will turn to the semi-final draw.
If you want to watch along, tune in on BBC Two, BBC iPlayer or right here on the website and app.
HT: St Helens 6-7 Warrington
Brian Noble
Former Great Britain coach on BBC Two
Warrington have only been down there a couple of times in the past 15 minutes but they've got a half-time lead.
George Williams never looked like missing, did he?
It's a great idea. Super rugby league, super half of football.
St Helens 6-7 Warrington
It's been a frantic first 40 minutes at the Totally Wicked Stadium.
A last-minute drop-goal from Warrington captain George Williams is the difference at the break.
George Williams
Warrington captain George Williams lands a fantastic drop-goal and that will surely ensure Wolves lead at the break.
He didn't flinch when the opportunity presented itself.
St Helens 6-6 Warrington
Warrington are causing St Helens trouble down the right edge again.
A speculative hurled pass from the wing finds the boot of Matt Dufty. It's a wonderful volley ahead.
Dufty chases it forward and foces the goal-line drop-out.
Josh Thewlis
A Curtis Sironen tackle off the ball allows Josh Thewlis to tee up a penalty to level.
He is right in front and doesn't miss with his kick.
St Helens 6-4 Warrington
It's end-to-end now.
Jon Bennison punches into space on the left for St Helens, but as Warrington close in around him he threads a kick inside looking for a support runner.
Wolves captain George Williams is scrambling back to defuse the threat as he tackles Lewis Dodd and forces the knock-on.
Brilliant defending, that.
St Helens 6-4 Warrington
Konrad Hurrell almost pulls off a Hollywood pass to set up another St Helens try.
He barges toward Warrington's defensive line, but before he can be wrapped up in a tackle he pops a one-handed flick-pass out for Tommy Makinson on the right.
For a fraction of s second the winger thinks he is in, but the play is pulled up for a forward pass.
St Helens 6-4 Warrington
St Helens head coach Paul Wellens is chasing his first Challenge Cup trophy as a boss.
As a player he hoisted the trophy aloft five times, so there is little surprise that it has a special place in his heart.
"Being a St Helens boy and growing up here it is something that's always been there," he told BBC Radio Merseyside.
"I've said before it's a hugely prestigious competition, not just in rugby league, but in world sport."
He has his players bringing the same passion and desire today.
It takes some great scrambling defence from Wolves to keep them out again.
St Helens 6-4 Warrington
How momentum has changed.
Since snatching the lead, it has been all Saints.
St Helens 6-4 Warrington
Brian Noble
Former Great Britain coach on BBC Two
You have to chase everything because opportunities like that will come for you.