Eden Hazard celebrates scoring his penalty
Chelsea's attacking talents were too much for a young Manchester United defence as they won 5-4 to book a place in the Capital One Cup's last eight.
Chelsea made two defensive errors as Ryan Giggs and Javier Hernandez scored either side of David Luiz's penalty, reports the BBC.
Gary Cahill made it 2-2 and it appeared Nani's chipped finish would win it but Eden Hazard scored another spot-kick.
Daniel Sturridge and Ramires both scored in extra-time before Giggs added a late consolation penalty.
Luiz also hit the bar in the added half hour as Chelsea finished on top and were rewarded for introducing the cream of their attackers from the bench.
Yet they were thankful to young United centre-back Scott Wootton, who pushed Ramires to gift Chelsea their second penalty in injury time and then left his header back to Anders Lindegaard short as Sturridge finally found the net.
The enthralling contest was an antidote to the acrimony which resulted from the Premier League match between these two teams three days ago.
And referee Lee Mason had an excellent game by calling all three penalties correctly. He also dealt with a scuffle between Oscar and Nani which threatened to boil over.
In other games, Swansea knocked out holders Liverpool 3-1 at Anfield while Norwich upstaged Tottenham 2-1.
Chelsea 5 - 4 Man Utd (aet)
Norwich 2 - 1 Tottenham
Liverpool 1 - 3 Swansea