Out-of-favour midfielder Cesc Fabregas scored two in as many minutes in extra-time to complete Chelsea's comeback from 2-0 down to beat ten-man Leicester City 4-2.
Shinji Okazaki had not scored for the Foxes since March but once he opened his account for the season they came like London buses, the Japanese forward netting a first-half double against Antonio Conte's men.
The first came afterthe Foxes broke at pace, with sloppy defending seeing the ball fall at the near post for Okazaki, who headed home from an acute angle, despite Cesar Azpilicueta's attempted clearance. The 30-year-old's second was from an acute angle and once again cleared by Azpilicueta once the ball had beaten Asmir Begovic and crossed the line.