Six minutes to go and here's the reason Wigan are back in front and heading for Wembley as it stands.

He's not necessarily known for his try scoring exploits but Michael McIlorum looks like he has dealt a huge blow to Salford's Challenge cup hopes.

You can watch how he put Wigan back in the lead here...

Wigan concede another penalty for a ball-steal right under their own posts... Salford tap it! Wigan down to 12 of course...

Wigan self-imploding there. Knock on in the tackle. Salford scrum right in the Wigan red zone...

Lama Tasi spills the ball off the tap - Todd Carney's kick in vain.

Meanwhile, Anthony Gelling's interference ends with him going to the sin-bin for 10. That's his game over.

Salford scrum feed midway inside their own half. They need a play from somewhere to get field position now.

There it is! TODD CARNEY 40-20 KICK!

Brian Noble
Ex-Great Britain coach on BBC Two

We had a lot of examples yesterday of how you can try and help the person trying to catch the ball. Loads of Wigan shirts there willing to clean it up. That's why they got the result and Salford didn't...

Brilliant game management by Wigan. The kick downfield split the winger and full-back and had Salford battling to get out of their 10. Then a knock-on.

Wigan ball. Right in the Salford mix.

10 to go.

I get fed up sometimes of people saying the magic has gone out of the Challenge Cup. Try telling the four teams involved this weekend... this has been a corker.

Wigan again holding out Salford in and around their 10 metre line.

The sentimentals (and Saints fans) among you might be wishing for a Salford win, imagine waiting 48 years for a return to Wembley? For Wigan it's a mere four seasons.

Jon Wilkin
Former England international on BBC Two

That was a smart piece of play by Sam Tomkins. He was stood quite shallow, actually, but he made the right decision.

It's a big ask for Salford to come back now. Their season has been building for this.

Sam Tomkins just makes it a two score lead with a one-pointer. Rain really thrashing down now. Ugh...

Wigan are back in the lead, but earlier in the half they had a try disallowed by video referee James Child.

You can watch the incident below and decide for yourself if it was the correct decision...

Shaun Wane and Ian Watson are a picture of anxiety in the stands. This game is gruelling for a coach.

Wigan now have the advantage as the conditions worsen but Manu Vatuvei was in the right place when he gathered in a kick before in goal.

Then a knock on as Salford turn over in midfield. Frustrations abound.

Wigan get a ball down to Joe Burgess who hacks back in field.

Michael McIlorum gathers... is it a try?

Michael Dobson's boot lets him down this time as his kick into the Wigan in-goal slides out for a tap on the 20.

Wigan right back at Salford in keeping with the game so far... up to the hour....

Barely have time to write an entry here before something else happens. Such an end to end game.

Sam Tomkins put Joe Burgess away but Greg Johnson slides him into touch on a rapidly sodden turf.

OUCH. George Williams misses from the tee. No good.

Wigan get the ball back off the 20 drop out.

Crucial ankle tap to stop Sam Tomkins as he looked to get away. He looks menacing breaking from deep - twice now he's sliced through a gap.

Head knock on Taulima Tautai from Lama Tasi's arm. That'll ring for a while. Incident placed on report while Tautai is assessed.

Wigan to take a shot at goal.

Image source, Rex Features

Having won the penalty, George Williams steps up to slot one from in front of the posts. Takes it. Level. All square. Big finish to come.

How much longer can we keep up this pace? Both sides are rattling through sets and surely that will tell on big forwards.

Now George Williams is stripped of the ball, Wigan will take two from the tee off that penalty to level.