Distinct lack of errors in the first five minutes or so and a great challenge from both sides.

Leeds have dominated the possession but Wigan haven't put a step wrong. A great contest.

Cracking stuff from Leeds in these opening stages. Under a fair bit of pressure on the turnover they send a kick upfield.

Dom Manfredi manages to collect as Leeds press. It's a lively start, here.

This is great to see!

Leeds centre Harry Newman is out for up to six months after breaking his leg recently.

He, however, has picked himself up to back his team-mates in today's semi-final.

Wigan, in their traditional cherry and white, get this semi-final going.

Let's go!

The players are beginning to make their way out at the Totally Wicked Stadium.

The conditions haven't eased and it's still bucketing it down. Who can use the rain to their advantage?

Here's how Wigan line up today after their 42-0 drubbing by St Helens on Tuesday.

Unsurprisingly, with such a quick turnaround, only one player remains in the starting line-up as Jake Bibby starts once again.

Wigan: French; Manfredi, Hardaker, Bibby, J Burgess; Hastings, Leuluai; Havard, Powell, Partington, Farrell, Isa, O'Loughlin.

Interchanges: Greenwood, Bullock, Smith, J. Shorrocks.

Image source, Rex Features

Richard Agar names a strong Leeds side as they aim to reach this month's Challenge Cup final.

With both sides featuring in midweek, there's a fair few changes to both sides, with Tom Briscoe the only player to start that featured in their defeat by Catalans on Wednesday.

Leeds: Myler; Handley, Hurrell, L Sutcliffe, T Briscoe; Lui, Gale; Seumanufagai, Leeming, Oledzki, Mellor, Martin, Prior.

Interchanges: Holroyd, Dwyer, Smith, Donaldson.

Wigan Warriors boss Adrian Lam on BBC One:

"You have to adjust to conditions like this. It's torrential here at the moment and its not going to get better.

When asked about using Wigan's record of 19 Challenge Cup triumphs as as motivation, Lam replied: "Wigan is steeped in its history in this competition, and had a lot of success. We have touched on that to help motivate the team."

Leeds Rhinos boss Richard Agar talking to BBC One:

"It's not let us down (the weather), its been forecasted. We have tried to prepare for this a little bit all week.

"It will be a factor in the game, the kicking gam, the kick-chase, field positioning becomes very important."

Image source, .

Days like today are what Leeds Rhinos are used to!

As impressive as it is to reach this stage 49 times, the big question is if they can go on to reach the big show and go on to collect the Challenge Cup for a 14th time.

As we look ahead to the Challenge Cup final in two weeks' time, I want to know your memories and stories of some of the greatest finals.

Catalans in 2018 conjure some fond memories for the sport? What about the good old days at the old Wembley?

Let us know on social media using #bbcrl

Less than 24 hours after Hull KR were sent tumbling out of the competition, their city neighbours suffered a similarly brutal fate at the hands of Wigan Warriors.

Sure, Wigan played some sublime stuff but it was a forgettable afternoon for the Black and Whites.

For fans of a Warriors persuasion and any neutral out there, you can enjoy the highlights above.

Image source, Rex Features

Leeds did a demolition job on Hull KR to reach the last four.

It was an eight-try performance, with two coming from Kruise Leeming, as the Rhinos charged by Rovers 48-18.

Here's what it looked like outside the ground in St Helens a few hours before kick-off from BBC rugby league commentator Matt Newsum's car.

Are the conditions going to play a part in today's ties? Looks like it could do.

Image source, BBC Sport

You don't just have to follow today's matches with my ridiculous ramblings, oh no.

We've got you covered across the BBC and on this very page as the action gets under way on BBC One right now ahead of Leeds v Wigan.

The coverage switches to BBC Two for the following tie when Salford take on Warrington and you can enjoy that at the top of this page along with BBC local radio coverage.

Hello and welcome to our coverage of the Challenge Cup semi-finals and I for one am glad that the weather's turned out well for it.

Whereas it might be a chilly October Saturday, rugby league and its warm, northern glow, pulls you in like a big 13-tackle hug.

Leeds v Wigan is up first in today's double-header, followed swiftly by Salford v Warrington at St Helens' Totally Wicked Stadium home.

A place at a Wembley final beckons. Let's get this going!