Teenager Floyd Samba said his debut was "mind-blowing" after his stunning two-goal display in Manchester City's 5-0 thrashing of Norwich. The 17-year-old academy graduate stole the limelight as the much-changed holders eased past the weakened Championship side and into the fourth round of the Carabao Cup on Thursday.

Playing up front in place of the rested Erling Haaland, Samba headed the opener just before the half-hour and curled in another after the break. He also had a hand in a goal for Rayan Cherki in a lively display. Samba said: "I knew there would be an opportunity to get some minutes for the first time with the first team, but to get a debut like that is mind-blowing."

New winger Allan Elias, signed for an initial £32 million ($43m) from Palmeiras last month, also marked his first appearance with a goal while another promising youngster in Ryan Mc Aidoo got on the scoresheet late on. City, who have won their last six matches in all competitions, will now host Brighton in the next round.

Manager Enzo Maresca said: "I've said since day one I am quite happy with the way we are working. It was not an easy game because they were serious, they were professional, I'm so happy with the performance."