Momen had suffered nine straight defeats to world number two Elshorbagy coming into tonight’s match and had not beaten his fellow Egyptian since 2013.

Elshorbagy, who beat younger brother Marwan to win his maiden PSA World Championship crown in December 2017, had the better of the early stages to go 2-1 up.

But Momen, who dispatched Marwan earlier on in this tournament, dug into his mental reserves and showed some sublime touches at the front of the court to level the scores.

The 31-year-old crept ahead in the deciding fifth game and held off his opponent to book his place in the final of the sport’s biggest event for the first time, winning 8-11, 11-6, 8-11, 11-4, 11-8.

There will be a new name etched into the men’s trophy tomorrow after Momen’s compatriot Ali Farag begun his reign at world number one with an 11-2, 11-9, 11-4 triumph over Germany’s Simon Rösner to reach his first PSA World Championship final.

"I’m so happy to be in the final, this is my first-ever [World Championship] final, but it’s not over," Momen said after his win. 

"I’m really looking forward to tomorrow - it is going to be the first time for both of us.

"I’m going to fight for it and give it my all, how can it get any better than if I win the World Championships?

"It cannot get any better."

Momen’s win came less than two hours after wife and reigning women’s champion Raneem El Welily saw her hopes of retaining her title extinguished by world number three Nour El Tayeb, losing 11-6, 6-11, 8-11, 11-7, 10-12 to her fellow Egyptian. 

El Tayeb is the wife of Farag and it is that duo who have the honour of becoming the first married couple to feature in the finals of the PSA World Championships.

Farag and El Tayeb, winners of the Windy City Open in Chicago last year, will be looking to replicate their incredible joint US Open wins from October 2017.

That saw them become the first married couple in sporting history to win the same major sports title on the same day and they will now appear in the finals of squash’s pinnacle tournament, where the lion’s share of the $1 million (£757,000/€879,000) prize fund - the highest in the sport’s history - is up for grabs.

Two-time winner Nour El Sherbini, meanwhile, will appear in her fourth successive PSA World Championship final - and her fifth overall - at the age of just 23 after she held off a spirited comeback from world number five Camille Serme of France.

El Sherbini became the sport’s youngest-ever world champion in 2016 at the age of 20 before retaining her title the following year.

The Egyptian then fell to El Welily in the final of the previous edition in Manchester in 2017.

She will have the chance to become the fifth woman to win three PSA World Championships after an 11-8, 11-6, 6-11, 5-11, 11-6 victory over Serme.

El Sherbini's match against El Tayeb will be a repeat of the PSA Tournament of Champions semi-finals, where the former prevailed en route to winning the title.

The finals of the PSA World Championships feature an all-Egyptian contingent for the third year in a row.