Swansea City shocked Nottingham Forest with a stunning late comeback to progress to the last 16 of the Carabao Cup and keep Ange Postecoglou waiting for his first win in charge of the visitors.

Forest had looked like they were set for a comfortable victory after Igor Jesus' first-half double put them in command.

But, having already got back into the tie via Cameron Burgess, Zan Vipotnik in injury time struck to seemingly send the game to penalties.

Yet more drama was to come as Australia international Burgess fired home from just inside the area to send Forest out and Swansea into the last 16.

His compatriot Postecoglou had to watch as the visitors threw victory away to exit a competition that provided the club's last major silverware in 1990.

Conversely, Swansea – League Cup winners in 2013 – enjoyed their finest cup success since relegation from the Premier League.

That seemed far away when Forest, having made 10 changes from the defeat by Arsenal in Postecoglou's first game in charge, took control via Jesus' first goals since his £10m summer move from Botafogo.

The first came after 15 minutes when after a driving run from the left, Hutchinson's shot hit an unsuspecting defender and into the path of Jesus. Squeezing his shot in from the far post, it was the Brazil international's first goal since his winner against Paris St-Germain at the Club World Cup.

Swansea carried greater urgency, but not the threat and the tie looked effectively settled in the final moments of the first half as clever work from James McAtee down the Forest right picked out Hutchinson who provided a tap-in for Jesus.

Burgess' glancing header from Eom Jisung's corner gave Swansea hope and raised noise levels that exploded when Vipotnik turned home Liam Cullen's cross three minutes into stoppage time.

And any hopes of penalties saving Postecoglou from embarrassment were denied by Burgess rifling home as Forest failed to clear a corner in the seventh additional minute.

After defeat at Emirates Stadium, Postecoglou promised this would be the game where the first signs of his influence on the team he inherited from Nuno Espirito Santo would be visible.

He did not have time to waste, he said.

And at the very least, the Australian will have gained a greater idea of what he has at his disposal after handing first starts to talent that cost the club the best part of £120m over the summer.

He would have had every right to have been impressed with Jesus, the striker nicknamed the 'Little Frog', who jumped at the opportunity to open his account in the south Wales rain.

More importantly for Forest, Jesus' second was an example of the kind of football associated with Postecoglou's teams as a sweeping move cut the hosts open and made it easy for the striker to finish.

There were signs too of Juventus loanee Douglas Luiz's class and what the likes of Hutchinson and McAtee could provide.

But there were also signs – as if the result did not make it obvious - that the former Spurs boss has plenty of work to do.

It was Swansea who looked to have the kind of tempo 'Angeball' is meant to have, pressing hard from the front with intensity.

And although Forest could point to spurned chances from a number of players, it would be tough to say that Swansea did not earn the win.

Ethan Galbraith and Mallick Yalcouye impressed and showed why there is renewed hope of the Swans pushing for a return to the Premier League.

Given this was the first time they have beaten top-flight opposition in 10 cup ties since dropping into the Championship in 2018, this result will only increase such hopes.

Forest head to Burnley on Saturday (15:00 BST) looking for a first Premier League win of the season before the club's return to European competition after a 30-year wait when they travel to Real Betis in the Europa League next Wednesday.

Swansea, meanwhile, head to Birmingham City for their next Championship fixture on Saturday (12:30 BST).