His dramatic, last-gasp, fingertip save was the difference between Dundee being promoted and remaining in Scottish football’s second tier.
With rivals Hamilton winning 10-2 against Morton on the final day of the season, fans at Dens Park knew that only a victory against Dumbarton would be enough to see them return to the Scottish top-flight.
The match was in the dying minutes delicately poised at 2-1 when Dark Blues keeper Kyle Letheren was called into action.
He dived low to his left to keep out a header from Sons striker Bryan Prunty and made sure the title-winning party went ahead as planned.
This week, the Welshman gave supporters the chance to own their own piece of club history by auctioning off the gloves he used to make the stunning save in aid of charity.
The auction, which was held on the 26-year-old’s Twitter page, began on Monday and concluded on Wednesday with the gloves selling for 500.
Kyle said: “I missed the civic reception through sickness and I felt quite guilty because I wanted to give something back to the fans.
“Hopefully, the gloves will make somebody very happy.
“I didn’t know the other score until after the game when a few of the boys said ‘you don’t know how important that save was’. It didn’t sink in until a few days later.
“The boys have been brilliant and they deserved to win the title.”
However, Dark Blues supporters are now facing fierce competition to land the priceless souvenir from Kyle’s father-in-law.
The goalkeeper said: “My father-in-law wants to hand the gloves down to his grandchildren someday but I’ve told him that if he wants them, then he has to pay for them.
“It’d be nice if they went to a fan because I know they’ll be treasured.
“A fan also asked to bid for my jersey, but I’m keeping that. I’ll get that framed and keep it on my wall. It’s definitely not for sale.”