St Mirren celebrateImage source, SNS

At a glance

  • Marcus Fraser heads St Mirren into lead inside two minutes

  • Reo Hatate volleys holders Celtic level before half-time

  • Jonah Ayunga’s second-half doubles secures St Mirren’s second League Cup, after first success 12 years ago

  • Wilfried Nancy suffers third defeat in a row since taking over at Celtic

St Mirren sensationally roared to Premier Sports Cup victory by stunning beleaguered holders Celtic in a frenetic Hampden final.

Goals from Marcus Fraser and a second-half Jonah Ayunga double did the damage against Wilfried Nancy's shell-shocked side as the Paisley club claimed the Scottish League Cup for only the second time in their history.

Having become the first manager of the Parkhead club to lose his first two games in charge – against Scottish Premiership leaders Hearts and Europa League heavweights Roma – Nancy was already staring at a must-win game on his maiden trip to Mount Florida.

His troubled side could not have got off to a worse start as former Celtic player Marcus Fraser towered above a dire defence to head home inside the opening two minutes.

St Mirren's motto has been "faith over fear" as they eyed a first success in this competition since their only win in 2013 against Hearts, when they beat Celtic in the semi-final, and few encapsulated that more than energetic striker Dan Nlundulu.

The powerful forward rag-dolled a ropey Celtic backline and had two gilt-edged opportunities to double his side's lead in their dominant opening 15 minutes, but he dilly-dallied the first and stroked wide with his second.

There was a concern the Saints would rue such golden chances against the champions.

The influential Kelechi Iheanacho was denied by a superb Shamal George save, but the St Mirren shot stopper could not do anything to deny Reo Hatate's back-post volley on the end of Kieran Tierney's terrific cross.

While the equaliser was deserved, Robinson got his men in at half-time level and regrouped to ready them for a special second-half performance.

Ayunga, who has experienced an at-times arduous spell at St Mirren, connected with a classy and creative Alex Gogic assist to restore the Paisley side's lead.

In the most recent of times, that would have sparked something with Celtic, but it seemed nothing could shake them into life in a sluggish second half as they stared at back-to-back cup final defeats this year.

Celtic could not rouse themselves and allowed for St Mirren to rubber stamp their dreamland day with a fantastic third on the counter as Ayunga crashed in the simplest of finishes to spark bedlam among those in black and white.

St Mirren analysis: Final piece of Paisley puzzle complete

Robinson, who has established St Mirren as a top-six side over the last three seasons and taken them back to European football, said the one thing missing from his tenure was a deep cup run.

There have been near misses, he has experienced pain here at Hampden with previous club Motherwell, but this was third time lucky.

Though there wasn't anything lucky about St Mirren's success.

In the semi-final against Well, they were applauded for nullifying their signature neat play. Here, they sucked any potential space Celtic would have wished to exploit with relative ease.

Goalkeeper George came up clutch with a few fine stops, but even he must have been surprised at the little hassle he was dealt on such a day.

The biggest compliment that can be paid the Paisley side's way is they didn't shock Celtic. There was nothing surprising, it was all just sheer deserved stuff.

This is a squad who play together and for one another. Now, they'll celebrate together and for one another long into the night.

Celtic analysis: Club in crisis crumble on centre stage

Togetherness is not a word that can be used in the same sentence as Celtic.

The way in which they started this monumental final was feeble. Swimming in mud, Fraser lifted off the Hampden turf to tower over Hatate.

While a fightback was somewhat mounted, it was never to the height required to hop the hurdle of a steely St Mirren.

The second-half display was so disjointed there was no notably moment that felt like "the moment".

It was a far cry from the performance put in last month against Rangers in the semi-final under Martin O'Neill. That was a game and result which some thought would start Celtic on the right track again.

But instead, weeks later, they're trudging through uncharted and choppy waters gasping for air. And everyone is watching on with a flashlight in their face.

Last month, Shaun Maloney was doing the dirty work in the dugout alongside O'Neill. For the final, he was tucked up the back among the Celtic board - who were once again not missed by the exasperated supporters.

Former Celtic goalkeeper Joe Hart suggested Nancy didn't know what he'd walked into in the wake of the defeat to Roma.

As time ticked on at Hampden, having switched between a nonchalant man and a frantic figure, he cut a lonely and lost look as the worst week imaginable for a Celtic manager came to its head.

What they said

St Mirren hero Jonah Ayunga tells BBC Scotland: "Amazing. We met the fans at the calendar signing this week and this was all they spoke about.

"To get the chance to play in this, let alone win it and score, I couldn't imagine it any better.

"Not a bad day's work, eh?

"This is once in a lifetime. I've been playing since I was 17, I'm nearly 30, this was the first time I had a chance to win anything."

St Mirren manager Stephen Robinson: "I'm delighted for everyone involved - staff, players. We've got a fantastic group of boys.

"When you speak to people in England, you get top six finishes, they don't understand the parameters, or the disparity of the league. If you're down in England, you've always got a chance because of the amount of games the budgets aren't that drastically different.

"There is a huge disparity here so for us to get a trophy, a small club like St Mirren, to do it in the manner we did... I'm so pleased for the boys."

Media caption,

Reaction to St Mirren's heroic day

Celtic manager Wilfried Nancy tells BBC Scotland: "I saw good things but it wasn't enough to win the game. We are struggling, conceded a few goals from set pieces. We had to come from behind, we saw a good reaction. We had many opportunities inside the box to be better.

"When things don't go the way we want we need to stick to what we do and play with more desire to play forward. I want to help the players with that.

"The results always count but I have to see beyond the result, I have to see what we need to do better to get a complete performance. This is something I discuss with the players and I think we're going to be able to do it.

Media caption,

Celtic manager Nancy on cup defeat

What next?

Celtic go to Dundee United on Wednesday (19:45 GMT) in an attempt to arrest their current run of form.

League Cup winners St Mirren host Livingston on Saturday (15:00).

Player of the match

Number: 14 D. Nlundulu
Average rating 9.09
Number: 14 D. Nlundulu
Average Rating: 9.09
Number: 11 J. Ayunga
Average Rating: 9.06
Number: 13 A. Gogić
Average Rating: 8.73
Number: 9 M. Mandron
Average Rating: 8.73
Number: 88 K. Phillips
Average Rating: 8.71
Number: 25 K. Baccus
Average Rating: 8.70
Number: 10 C. McMenamin
Average Rating: 8.64
Number: 3 S. Tanser
Average Rating: 8.62
Number: 22 M. Fraser
Average Rating: 8.59
Number: 33 E. Mooney
Average Rating: 8.55
Number: 21 M. Freckleton
Average Rating: 8.51
Number: 24 D. John
Average Rating: 8.44
Number: 1 S. George
Average Rating: 8.43
Number: 2 J. Richardson
Average Rating: 8.22
Number: 5 R. King
Average Rating: 8.15

After the opportunity to rate players has closed, the score displayed represents the average from all the submissions by BBC Sport users.