Holders Manchester City were eliminated from the League Cup by West Ham United after a penalty shootout at London Stadium on Wednesday, ending Pep Guardiola's team's four-year domination of the competition.
The game went to penalties after ending goalless and the Hammers triumphed 5-3 in the spot kicks to progress to the quarter-finals.
With Manchester United knocked out in the previous round, also by West Ham, it means the Cup will be won by a non-Manchester club for the first time since 2015.
Guardiola and West Ham boss David Moyes made largescale changes to the line-ups from the weekend's Premier League games but there was no shortage of competitive desire from either side.
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Substitute Phil Foden missed the first penalty for City and Said Benrahma converted the final kick to give the Hammers victory in what is becoming an excellent season for the East London club.
"You win some you lose some but with the resilience and the honesty we showed, we deserved to get over the line," said West Ham assistant manager Stuart Pearce.
"A really good night for this football club with 60,000 in the stadium. The players deserve all the credit and a bit to our manager as well who drives this club on a daily basis," he said.
Guardiola was full of praise for West Ham and reflected on his club's remarkable record in the competition.
"An incredible run has finished. We finished in a good way. We played in a really good way, creating chances against a team who defended deep," he said.
"On penalties they were better. Congratulations to West Ham. Next year we will be back," he added.