Warrington forward Ben Currie holds onto Joel Tomkins for too long and Wigan have themselves a penalty.

Understandably, the game has just lost some momentum in the past few minutes.

Michael McIlorum stumbles to his feet after that challenge and is quite obviously concussed and despite saying he wants to stay on, the Wigan physio tells him to have a break.

Michael McIlorum stops the momentum of a Warrington attack with a huge hit on James Laithwaite. He hit him with everything he had, but the Wigan hooker has stayed down for treatment.

Ben Flower comes off to more applause from the home fans. They're showing their support for him. He's been solid so far in his first appearance of the season on his return.

Wigan nearly extend their lead through another sublime Joel Tomkins offload. Tomkins releases Dom Manfredi but the winger is unable to find a team-mate when running towards the line.

A well worked move through the hands by Wigan as they work it from left to right. Runners everywhere but it is Anthony Gelling who is able to break the despairing tackles on him.

That's 33 tries from 61 appearances for the Warriors now for the big centre.

Good news spreads fast. Sam Tomkins is currently the fifth trending topic in the UK on Twitter.

You can read more on his £200,000 move back to Wigan on the BBC Sport website.

Paul Rowley
Leigh Centurions coach on BBC Radio Manchester

"Declan Patton has got one hell of a boot on him, it's a catchable kick, a fundamental error.

"Warrington celebrated like they had won the Challenge Cup - they're all about body language and psychology."

Second big mistake of the night from Ryan Hampshire. A high kick from Warrington's Declan Patton is sent up and the Wigan full-back spills the ball. Warrington on the attack...

After defending their line in the opening minutes, a simple Warrington passing moving finds Ben Currie in space and the second-row stretches his legs for an easy run in.

That is the sixth time the lead has changed already this game. Stefan Ratchford kicks his second goal of the night.

I'm going to put my neck out and say we can probably expect some more tries...

Anthony Gelling for some reason decides to not throw the ball to Dom Manfredi, who is free, early on in the set.

The Warriors work it across the line again, and after a Joel Tomkins break, this time Gelling does give the ball to his winger but good defensive cover prevents him from crossing.

We're back underway at the DW Stadium and it could not be a worse start for Warrington as they let the ball run into touch and Wigan have an attacking scrum.

Don't forget there is Challenge Cup action across the weekend as well as games from Super League and League One.

The plum ties? Well on Sunday - Leigh Miners Rangers of the National Conference League take on York at the home of neighbours Leigh - who welcome Salford on Saturday.

Bradford Bulls go against Hull KR and Sheffield host Hull FC at Bramall Lane.

BBC's Super League Show has previewed the round five ties, which you can watch here.

Warrington centre Ryan Atkins, who is missing the game with a sternum injury, said on Twitter:, external "Great half of rugby! Some solid tackles, some great individual skills & amazing team tries. If we control the ruck better we will win this"

So after a breathtaking half of rugby, the news that one of the worlds best players is returning to Super League next year - just how good is Sam Tomkins?

Lets us know your thoughts using #bbcrl

Wigan chairman Ian Lenagan on BBC Radio Manchester:

"I think it's good for rugby league, he's back at Wigan which is where he is meant to be.

"Sam is utterly delighted to be coming back, I think it's better than relief, that makes it sound like a negative.

"He's loved the year and a half in New Zealand and he wants to end his time here on a high but he's looking forward to coming back and playing for Wigan with [brothers] Joel and Logan."

There was a huge cheer as the Sam Tomkins news filtered around the Wigan fans. Tomkins then spoke to fans via a recorded message on the big screen at the DW Stadium.

"He's back at Wigan where he should be. It's (the negotiating) been going on for about three-and-a-half weeks now. " Wigan chairman Ian Lenegan tells BBC Radio Manchester.

Image source, Getty Images

Wigan chairman Ian Lenagan announces that England full-back Sam Tomkins will return to the Warriors from the New Zealand Warriors on a four-year contract, for a fee of £200,000.

A frantic end to the first-half as Warrington were throwing the ball around to try and regain the lead before the break.

Wigan though hold out and we can all catch our collective breaths after a brilliant half of rugby league.

A few scrappy bits of play, but Wigan on the attack again. Joe Burgess is unable to take a kick under pressure from Wire's Joe Monaghan and Warrington bring it away.

News of a big half-time announcement currently doing the rounds... we'll keep you updated.