The match marks Warrington's third appearance in four seasons in the final, and they'll be hoping for a better outcome this time out having been the losing side on each of those visits to the capital. Will they make it a winning Wembley visit this time? Watch all the St Helens vs Warrington action live, even if the match isn't been shown where you are, with our Rugby League Challenge Cup live stream guide below. Currently sitting pretty at the top of the Super League with a massive 16 point gap between them and their opponents, St Helens go into today's game as clear favourites. Saints coach Justin Holbrook will be hoping his side will maintain their impressive form which has seen them go unbeaten so far in August, and they'll be boosted by the return from injury of Alex Walmsley, Lachlan Coote, James Roby and Joseph Paulo.
The first 10 minutes of this half have been absolutely breathless. Both teams are playing at mph. You fear that both teams are hanging on defensively.
The next points could be particularly crucial. Sensational defensive effort.
You fear Warrington are going to need some more of them! We go upstairs once again Knowles drops the ball and allows Warrington a penalty in an advantageous position.
Lineham gets the ball down but there appears to be contact with his own man before he gets the ball down and the referee rules no try.
A big 40 minutes of rugby coming up now. Warrington have defended resolutely, but at times have looked like they are hanging on. You fear that if Saints get one, they might get a second and a third. The longer we can hold them to zero and the more doubt creeps into their mind, I think.
Warrington have done a magnificent job. They have been under the cosh for the most part, but executed their attacking plays perfectly and taken full advantage. St Helens will be unhappy their early try did not stand when it should have done.
But this sets us up nicely for the second half! McCarthy-Scarsbrook was among those who caused a real threat.
Warrington scrum. Can they take advantage? Golden opportunity for Saints underneath the sticks. More On.