It's an easy one for Mikey Lewis to sink and Hull KR add to their lead.

The incident is sent up to the TV match official and while Mikey Lewis is cleared, Warrington are pinged for a penalty.

Mikey Lewis will tee up for a shot at the uprights.

Mikey Lewis sparks a bit of a melee as he comes in second to a tackle on Josh Smith.

The Wolves players come in to confront Lewis is their numbers, with plenty of pushing and shoving.

Nothing is clicking for Warrington right now.

They are trapped in their own half by a ferocious Hull KR side, and when Marc Sneyd tries to relieve pressure with his kick from deep he sends his effort out of play.

Hull KR get the ball back within striking distance of the line...

Joe Burgess fields a long Warrington kick then is wrapped up in a tackle.

But that's not enough for the Wolves and they drag him out of play.

Problem is that referee Liam Moore called that the tackle was complete and Warrington give away another penalty.

This will allow Hull KR to kick up field to heap even more pressure on.

John Kear
Former Bradford Bulls head coach on BBC Two

He throws absolutely everything, including the kitchen sink, to put Burgess over the sideline.

What a piece of defending there from Thewlis!

Image source, PA Media

Hull KR are crashing against Warrington's defensive line like a red and white wave.

Their opt to run the ball on the last tackle with their latest raid on the line, but are pulled up short.

Warrington have all the work to do now to get out of the danger zone.

John Kear
Former Bradford Bulls head coach on BBC Two

Look where Hull KR turn the ball over - 10 metres away from the Warrington line and they'll do it time after time after time.

They're so well drilled and well organised.

Joe Burgess had the tryline in his sights for Hull KR. He was flying down the edge and poised to try dive into the corner.

He, however, is shunted out of play by Josh Thewlis and Josh Smith. They combined for a try-saving intervention there.

The tempo of the game has been turned up to max from the first minute.

A few handing errors have crept into Warrington's game. They cough up a penalty when they finally got the ball back in hand after going a try down.

Jonathan Davies
Former Warrington centre on BBC Two

You can't afford to give Hull KR possession with simple mistakes.

Marc Sneyd is also ball watching a little bit.

I said there were no big game neves, but Josh Thewlis spills the ball deep in his half when tacked.

It invited early pressure on the Warrington try line. Hull KR press, and their first attempt to get over is held up.

It's blow-for-blow right now as the two teams feel their way into the game.

Hull KR get through their first set cleanly.

I certainly don't see any big game nerves in this one.

There were more than a few bruising hit-ups in that first set. Hull KR have been keen to show their muscle early on.

Warrington rattled through the opening set calmly and kicked from just inside their half.

John Kear
Former Bradford Bulls head coach on BBC Two

What an atmosphere we have in here.

You can't hear yourself think!

We are up and running in the last of the weekend's Challenge Cup semi-finals.

And it's Hull KR that have kicked off, with Warrington with ball in hand first.

Cue the pre-game pyrotechnics!

I bet those flames that welcome the players onto the pitch won't be the only fire we see in this game.

Hull KR boss Willie Peters told BBC Two before kick-off:

"It's been a great week. It's go time now - it's all about our actions.

"They (Warrington) have got threats all across the park. They work hard for each other. But we've also got a strong pack so it'll be a great game."

On the impact the Hull KR fans will make: "It's huge. 7,500 KR fans is loud but we have to give them something to sing about."

We are just minutes from kick-off.

The stands at the Eco-Power Stadium are rocking with anticipation.