Liam Marshall marked his 150th appearance with a hat-trick as Wigan sealed their return to the Betfred Super League Grand Final for the first time in three years with a blistering 42-12 win over Hull KR at the DW Stadium.

Matt Peet’s men scored three tries in the opening 12 minutes and never looked back as they set up an Old Trafford clash with Catalans Dragons and their former hero Sam Tomkins, who starred in each of Wigan’s previous three Grand Final wins.

Elliot Minchella’s try gave Rovers a glimmer of hope before the break but three tries in quick succession at the start of the second half – bolstered by the unerring boot of Harry Smith who kicked all seven of his conversions – wrapped up Wigan’s win inside an hour.

Willie Peters’ men had arrived at the DW Stadium brimming with confidence after a stellar campaign but the semi-final simply proved a step too far as their flat-footed defensive line was ruthlessly exploited by the hosts.

Marshall marked his 150th appearance by crashing between Tom Opacic and Louis Senior to notch the opener inside three minutes, then Jai Field pursued Smith’s clever kick to slap down his side’s second, a video check over-ruling referee Liam Moore’s suspicions of a knock-on.

Marshall exposed more gaps on the Rovers rights to trot over all too easily for his side’s third and Smith’s precision with the boot meant the visitors were staring at an 18-0 deficit having barely brushed the ball in anger.

Minchella at least gave his side hope before half-time as Rovers capitalised on a careless knock-on by Abbas Miski, Opacic and Matt Parcell combining to give Minchella the chance to get their side on the scoreboard.

Rovers briefly looked galvanised and Matty Storton had a sniff of a second, but it marked their last real chance to establish some sort of contest as familiar failings meant Wigan completed the job within 15 minutes of the restart.

French’s clever cross-field lob found Marshall in space to tap down for his hat-trick, yet another Rovers failure to cope with a high ball sent Toby King over in the opposite corner, then Patrick Mago’s fancy footwork served up Field’s second.

Wigan were simply merciless against a Rovers team folding under the weight of an exhaustive campaign and a seventh try via Abbas Miski began to give the scoreline echoes of Wigan’s 64-6 win over a second-string Rovers side early last month.

They at least avoided that indignity, but it was a sad ending for Rovers and in particular their stalwart Shaun Kenny-Dowall, who had a shocker in his final game before retirement.

Smith finally missed with a cheeky long-range drop-goal attempt as Wigan counted down the minutes and Rovers at least gave their massed ranks of travelling fans something to cheer when Jordan Abdull sent Jez Litten cantering through in the dying stages.

Shaun Maloney admits his Wigan Athletic side are “ahead of schedule” after starting their Sky Bet League One campaign with two successive wins following a 2-1 victory over Northampton at the DW Stadium.

Having started the campaign with an eight-point deduction for financial issues last season, Wigan are now only two points from wiping out that deficit after a flying start.

Two goals in the last 20 minutes from Charlie Hughes and Callum McManaman gave them victory over Northampton, who had led through a Sam Hoskins free-kick after 24 minutes.

Maloney’s men would move into positive points with another win at Carlisle on Tuesday.

“It’s been a really positive start in the league,” he said.

“We set ourselves a target of six games to get into positive points, so we’re maybe a little ahead of schedule.

“But we know what football can do.

“In terms of today’s game, I thought it opened up in the last 20 minutes, but we had a brilliant feeling at the end.

“And all the credit has to go to the players.

“It was the players that had to see out the last half an hour at Derby, where we had to defend for our lives.

“We had to do the same here for the last 10 minutes plus seven minutes of injury time.

“But the mentality of the young group, I think it’s always a bit of an unknown.

“And we had some big, big performances today to get us over the line.”

Wigan’s matchwinner was McManaman, who is in his third spell at the club, having won a 12-month deal in the summer after training with the side since Maloney’s arrival in January.

“I thought he was brilliant in the first half against Derby, but he’s had a knock on his hip,” added the Wigan boss.

“I would have liked to have started him today, and I ended up needing him longer than I wanted.

“But it was a brilliant day for Callum.

“I’ve seen the progression he’s made while he’s been back here, all the work he’s put in, and I’m so, so happy for him.”

For Northampton boss Jon Brady, it was a case of what might have been.

“It’s a step up in standard and, if you don’t defend right, you get punished, and we were today,” he said.

“We’re still getting there, but today’s performance gave me a lot of confidence in the group.

“On a big pitch like this, it’s very difficult to step on and press like we did in the first half.

“And that’s a big reason why we couldn’t step on as much in the second half.

“We scored a very good goal, that’s the quality Sam possesses.

“We also hit the post, but I’ll compliment Wigan here.

“The blocks in the box won them the game today.

“A lot of our opportunities were what I’d want from my team.

“But their attitude, their never-say-die, their never-give-up, was really commendable.”

Both Brady and his assistant Colin Caldwerwood were yellow carded in the final half an hour by referee Ross Joyce.

“McManaman has poleaxed one of my players, and the referee has done nothing about that,” he added.

“And the fourth official pretends he hasn’t seen it, which is disappointing.

“It’s just the consistency and the dark arts they were using.

“But I’ll leave it there before I say too much.”

Wigan Athletic moved up to minus two points in Sky Bet League One after securing their second league win from two against Northampton Town at the DW Stadium.

Northampton started well and even hit the post with a minute gone through William Hondermarck.

So it was no more than they deserved when Sam Hoskins curled a wonderful free-kick over the wall and into the top corner of the Wigan net.

Wigan made an early change with Callum McManaman being sent on within 10 minutes of the restart.

The new man had a cross headed just wide by Callum Lang before being chopped down by Marc Leonard at the expense of a booking.

Cobblers boss Jon Brady was also given a yellow card following the incident, with assistant Colin Calderwood following him into the book shortly after.

Wigan’s equaliser arrived with 18 minutes to go when Charlie Hughes headed home Tom Pearce’s corner.

McManaman secured a deserved win with 11 minutes remaining when he curled a beautiful shot into the top corner from 20 yards.

And there was still time for Charlie Wyke to head against the post from all of a yard.