Lyon reached their first Coupe de France final for 12 years after beating Ligue 2 strugglers Valenciennes 3-0.

They will play Paris St Germain or Rennes in the final following a victory inspired by captain Alexandre Lacazette at Groupama Stadium.

Lacazette struck twice during a six-minute spell shortly after half-time to subdue a team 28 places below Lyon in the French league pyramid, while Gift Orban added a third.

Valenciennes went into the semi-final clash – their first last-four appearance since 1970 – as rank outsiders.

They are 11 points adrift at the bottom of Ligue 2 and had failed to score a goal in four league games since knocking out quarter-final opponents Rouen.

But it was far from plain-sailing for Lyon, who saw their opponents have a goal disallowed just before the interval.

Valenciennes found themselves under early pressure, with goalkeeper Jean Louchet forced into an early save from Said Benrahma’s shot, before Duje Caleta-Car was off-target from close range.

Although the visitors slowly grew into the game, they again found themselves in defensive mode as Lyon launched another attack, but Ernest Nuamah was wide with a header and then a shot during the space of two minutes.

Valenciennes had been under sustained pressure, yet they had a goal disallowed seven minutes before half-time when Sirine Doucoure’s effort was ruled out following a VAR review that picked up a foul on Lyon’s Jake O’Brien during build-up play.

It was a wake-up call for Lyon, but they could no find way through by half-time as their frustration surfaced when Clinton Mata collected a booking.

But the deadlock was broken six minutes into the second period when a foul by Valenciennes’ Joffrey Cuffaut gave Lacazette a golden opportunity from the penalty spot, and he made no mistake.

Lacazette was booked for excessive celebrations, yet a sense of relief swept around the stadium as Valenciennes’ impressive resistance had finally been broken.

The former Arsenal striker struck again six minutes later when his close-range shot beat Louchet and Orban then added a third as the clock ticked down.

Lyon will bid to reach their first Coupe de France final for 12 years when they host Ligue 2 strugglers Valenciennes on Tuesday.

A likely clash against Paris St Germain is the prize if they can overcome a team 28 places below them in the French league pyramid.

Lyon lost to Nantes at the same stage of the competition last season, and club captain Alexandre Lacazette admits it is a painful memory.

“We still have a lot of regrets from last season, and we don’t want to repeat the same mistakes,” Lacazette said during a pre-match press conference.

“We need to play. Last year we had that fear. This time we have to play to avoid regrets like last year.

“They (Valenciennes) are the smallest of the four teams (left in the competition), but it is still a semi-final and we have to respect them.

“We understand that with the atmosphere and environment, if we are serious, things will go well, but we have to be careful.

“It is pleasing to be here today, but we want to reach the final for everything we have experienced since the start of the season.

“We need to stay focused on the objective. I think in these kinds of matches there is no need for grand speeches. All players will be motivated to give their best.”

Lyon could be boosted by the return of Clinton Mata, who is available after serving a ban, and manager Pierre Sage must decide whether to field Lucas Perri or Anthony Lopes in goal.

Lopes is Lyon’s number one goalkeeper, but Perri has been Sage’s choice for the cup games and he excelled in the quarter-final victory over Strasbourg, which went to a penalty shoot-out.

Valenciennes go into the semi-final clash – their first last-four appearance since 1970 – at Groupama Stadium as rank outsiders.

They are currently 11 points adrift at the bottom of Ligue 2, and have failed to score a goal in four league games since knocking out quarter-final opponents Rouen.

Despite their miserable league form, though, Valenciennes have thrived in cup action, defeating Paris FC and Saint-Priest before facing Rouen.

But Ahmed Kantari’s team face a huge step up against Lyon, with the cup-tie unfolding against a backdrop of Valenciennes effectively being resigned to a place in French football’s third tier next season.

Kantari will hope he can select his strongest available team, given the magnitude of Valenciennes’ task, but Allan Linguet could be doubtful because of a foot problem.