Holders Swansea City fell at the first hurdle of this season's League Cup as 2011 winners Birmingham City beat them 3-1 on Wednesday.
Championship outfit Birmingham grabbed early second-half goals from Dan Burn, Matt Green and Tom Adeyemi to delight the home crowd at St Andrew's after their Premier League opponents had the better of the first period.
Wilfried Bony scored in injury time for Michael Laudrup's side, but it was a case of too little, too late for the visitors.
There were 10 changes from the Swansea side that beat Crystal Palace in the Premier League on Sunday, with Jonjo Shelvey the only man to keep his place as close-season recruits Alejandro Pozuelo and Bony started.
Birmingham manager Lee Clark, on the other hand, made just five alterations from the team that overcame Sheffield Wednesday 4-1 in the Championship last time out, with Jesse Lingard the most notable absentee.
The 20-year-old, who joined on a season-long loan from Manchester United last week, scored all four goals in their win at St Andrew’s on Saturday but cannot play in cup competitions due to a clause in his contract.
But despite the youngster’s absence, Birmingham created the first goalscoring opportunity of the game after 13 minutes when Chris Burke fired over the bar from the edge of the area.
However, Swansea almost took the lead just minutes later when Bony hit the bar before Pozuelo also clattered the woodwork with the follow-up.
The Premier League side then began to assert their authority on the game and the Ivory Coast international went close again shortly after, as his powerful shot was blocked in the 30th minute.
Roland Lamah was next to have an effort on goal for Laudrup’s men, but his shot was kept out by the feet of Birmingham keeper Colin Doyle as half-time drew in.
The home side came out the more energised team after the break though, and they soon created a chance as Matt Green forced Gerhard Tremmel into a great save with five minutes gone.
Their pressure soon paid off, and it was Burn who broke the deadlock as the defender netted an unmarked header in the 55th minute.
And things then went from bad to worse for Swansea just minutes later as Green met a cross from Mitch Hancox to leave Tremmel with no chance.
Laudrup then opted to make changes in an attempt to change the flow of the game, with Alvaro Vazquez and Jose Canas replacing Jonathan de Guzman and Shelvey.
But Birmingham were rampant by this point and increased their advantage when Adeyemi capitalised on a Canas error to claim the third with less than 10 minutes remaining.
Bony then headed home from a Wayne Routledge corner in the dying seconds, but this was no more than a consolation for Laudrup's side.
|Coach: L. Clark|
|Karanka delighted with Boro´s game management|
|Middlesbrough 1 Hull City 0: Ramirez sinks sorry Tigers|
|Can Arsenal break the Basel curse? The Champions League in Opta Numbers|
|Everton confirm serious knee injury for Bolasie|
|Stam set for Old Trafford reunion in FA Cup third round|
|Sanchez, Ozil contract talks not just about money - Wenger|
|It is normal my son says I´ll coach Inter, I will - Simeone|
|Chapecoense confirmed as Copa Sudamericana champions|
|Sullivan backs Bilic to reverse Hammers´ fortunes|
|It was close...very close - Hummels reveals level of Man United interest|
|What You Might Have Missed: An FA Cup comeback of all comebacks and Monaco can´t stop scoring|
|Preston fans to be refunded from Beckford, Doyle fight fines|
|In-demand Lindelof ´happy to stay at Benfica´|
|FA charges City and Chelsea for late fracas|
|Darmstadt sack coach and sporting director after dismal run|
|Anyone who says they would not sign Messi is a liar! - Caballero|
|Roberto warns Madrid: Barcelona will cut the gap|
|Emery: Champions League top spot was always PSG´s priority|
|Guardiola brands Sanchez transfer rumours as lies|
|Boateng ruled out of Bayern´s clash with Atletico|
|FA confirms four-game ban for Aguero|
|Blatter FIFA ban remains after CAS dismisses appeal|
|Luis Enrique: I don´t give a damn about beating Gladbach|
|Emre hits out at Allardyce´s style... and slams his chewing gum|
|Bravo the world´s best goalkeeper, says Pellegrini|
|Ibrahimovic: I know how to kick someone and make him fall asleep|
|Barcelona and Real Madrid would not win 5-0 in Ligue 1 - Verratti|
|Seedorf out, Eriksson in at second-tier Chinese club|
|Tevez to China? Shanghai Shenhua claim ´breakthrough´ in talks|
|´English football is not more pure´ – Pochettino will not slam Alli for ´dive´|
|Gudjohnsen offers his services to Chapecoense|
|Savicevic: Champions League qualification paramount for Milan|
|Wenger: West Ham could take two years to settle|
|River Plate play in green as tribute to Chapecoense|
|Roberto Carlos open to coaching in A-League|
|Wenger confident there is more to come from Arsenal|
|Kane wants to see out career at Tottenham|
|Aguero challenge labelled ´crazy´ by disappointed Cahill|
|Mourinho ´has nothing to hide´ over tax affairs|
|Guardiola happy despite City setback|
|Ibrahimovic: I tried to avoid Coleman|
|Pogba hits out at ´distorted´ holiday claim|
|Nice 3 Toulouse 0: Plea strikes again as hosts go top|
|In-demand Belotti extends Torino stay|
|Mourinho defends decision to bring on Fellaini|
|Man Utd performances much better under me, says Mourinho|
|Draw the least Everton deserved against Manchester United, says Koeman|
|Mourinho fumes at media double standards|
|Mourinho has ´no thoughts´ on Fellaini penalty incident|
|Neville unimpressed by ´idiotic´ Fellaini|
|Manchester United are the Premier League´s worst team for dropping points with late goals|
|Manchester United mocked after Fellaini congratulations|
|´We have to put it right´ - Jones frustrated as United lose another late lead|
|Lulic sparks racism storm with Rudiger insult|
|Everton 1 Manchester United 1: Late Baines penalty denies Mourinho|
|Eto´o prefers Iniesta to Ronaldo and Messi: He deserves four Ballons d´Or|
|Liverpool join unfortunate group after Bournemouth collapse|
|Strootman praises Roma´s mental strength after derby win|
|Comeback win over Liverpool a special day for Bournemouth - Howe|
|Liverpool stopped playing football in Bournemouth collapse - Klopp|
|Lazio 0 Roma 2: Strootman and Nainggolan continue Giallorossi dominance|
|Bournemouth hero Ake hails incredible comeback win over Liverpool|
|Montella hails Lapadula´s ´fairytale´ rise to AC Milan stardom|
|Beautiful football is Guardiola´s Bayern legacy - Rummenigge|
|Bournemouth 4 Liverpool 3: Stunning comeback leaves Klopp´s men reeling|
|Lopes set for several weeks of treatment on ´sound trauma´|
|Lapadula: This is just the start of my Milan journey|
|AC Milan 2 Crotone 1: Lapadula winner spares Niang´s blushes|
|Torres fit for Bayern Munich clash|
|Dortmund´s Sahin fears eased|
|Eto´o: Guardiola still the best coach in the world|
|Carvajal apologises for swearing at Barcelona fans|
|MP calls for examination of Mourinho tax avoidance allegations|
|A-League Review: Sydney go six points clear at top as Adelaide clinch first win|
|Referee sorry amid fall-out from Werner dive controversy|
|Pique taking inspiration from 2014-15 turnaround|
|Aulas: Lyon should be awarded win after Metz clash is abandoned|
|Emery: PSG must learn from defeat|
|Marotta: Best to laugh at Pogba comments|
|Mourinho: I´m bringing back Manchester United DNA|
|De Boer: Nobody in charge at Inter|
|Chapecoense to be named Copa Sudamericana champions - Tozzo|
|Bilic: We are in a relegation fight|
|Aubameyang: I don´t know if I´ll be at Dortmund next season|
|Goals will return for Higuain, says Allegri|
|Southgate hopes to convince Zaha to play for England|
|Simeone will go to Inter, says son Giovanni|
|Watford fan dies after falling ill during West Brom clash|