First held in the 1960/61 season, the League Cup is one of the three top-tier domestic football competitions in England and it has some produced some of the most dramatic moments over the years.
The 1991 League Cup pitted Manchester United, the reigning FA Cup champions, against Second Division side Sheffield Wednesday, and the Red Devils were the firm favourites to lift the trophy.
However, the Owls defied the odds to claim the spoils, with John Sheridan's 37th-minute strike proving to be the difference between the two sides.
This League Cup success is still the last time a team from outside the top-flight has won any major trophy in England.
Chelsea and Liverpool met in the 2005 League Cup final, the first time those two sides had contested a major final, and this turned out to be an absolute cracker at the Millennium Stadium, Cardiff.
John Arne Riise rifled Liverpool into the lead inside the opening minute and it looked like that would be enough to see his side through, as they remained in the lead with 11 minutes of normal time to go.
However, captain Steven Gerrard inadvertently headed a Chelsea free-kick into his own net in the 79th minute, with Blues boss Jose Mourinho then proceeding to walk down the touchline with his fingers to his lips, sparking a furious response from the Liverpool supporters.
Mourinho was subsequently sent off for his actions, forced to watch the rest of the match from the changing room, but it was the Portuguese who had the last laugh as his side ran out 3-2 winners after extra-time.
It was Mourinho's first trophy in charge of Chelsea - he would go on to win eight trophies across two spells at the club - and the first under the ownership of Roman Abramovich.
Birmingham defied the odds in the 2011 League Cup final to overcome Arsenal, who had won both league fixtures that season, at Wembley Stadium for their first victory in this competition since 1963.
Nikola Zigic put Blues ahead in the 28th minute before Robin van Persie levelled the scores 11 minutes later, sending the sides in at the break at 1-1.
With both sides spurning chances in the second half, the game was heading for extra-time until Obafemi Martins took advantage of a huge error at the back to score the winner in the 89th minute.
Goalkeeper Ben Foster launched a long ball downfield that was flicked into the penalty area and should have been dealt with by Arsenal stopper Wojciech Szczesny, but Laurent Koscielny swung a wild boot at the ball, which then hit the keeper and fell into the path of Martins, who fired into the back of an empty net.
This victory proved to be a rare positive for Birmingham, who were relegated from the Premier League a couple of months later.
Manchester City were the firm favourites to win the 2014 League Cup final against Sunderland, but the Citizens did things the hard way as they had to come from 1-0 down at the break to eventually triumph 3-1.
Fabio Borini gave the Black Cats the lead on the 10th minute, the forward latching on to a ball over the top, holding off Vincent Kompany before slotting the ball into the bottom right corner of Costel Pantilimon's goal.
In the 55th minute, a moment of true brilliance from Yaya Toure brought the scores level. The Ivorian curled in a sensational 30-yard effort to restore parity before team-mate Samir Nasri, almost straight after the restart, put City ahead with a crisp strike of his own.
Jesus Navas made sure of the win following a swift City counter-attack in stoppage time to seal their first League Cup win since 1976.
The 2019 League Cup final wasn't the greatest of spectacles between Manchester City and Chelsea, with the two teams locked at 0-0 heading towards the end of extra-time.
But it was as the game was ticking towards penalties that a huge incident occurred. Blues boss Maurizio Sarri had goalkeeper Willy Caballero ready to come on for Kepa Arrizabalaga, only for the latter to deny his manager's orders and refuse to leave the field.
With Sarri almost storming down the tunnel in disbelief, Kepa ended up staying on the pitch, but he was unable to guide his side to victory in the shootout, noticeably allowing a weak Sergio Aguero penalty to slip underneath him.