Phil Foden capped a man-of-the-match display against Oxford with his first goal for the Blues.
The Stockport-born teenager admitted his first senior strike was a dream come true – and promised there is much more to come.
“It's hard to put into words - it hasn't fully sunk in,” said Foden.
“I've dreamed of this moment, growing up as a City supporter.
“My first goal is special to me and I'm happy to have helped the team to get the win.
“Mostly, when I was dreaming (about scoring for City), it was in the Premier League but in any competition, it's special to get your first goal.
“I'm happy to get it. I couldn't contain myself - I ran off, mad!
“It's a moment I'll never forget.”
Foden played a big role in the Blues’ first goal and then assisted the second for Riyad Mahrez.
He says he doesn’t mind assisting or scoring – and hopes there are many more occasions when he can do the same.
He said: “I enjoy assisting as well as scoring. It's good to have both in your game.
“I'm learning every day from the likes of David Silva and Kevin De Bruyne.
“I need to keep learning and enjoying my football; then we'll see where I go from there.
“It was good to get some minutes.
“I would have liked my goal to have come much earlier (in my senior career) but it's come now and it's a great feeling.
“Hopefully, it's the first of many!”