Dickson is now with Sunderland and a Nigeria international and Kelvin told City's website: "I didn't start playing competitive football until I was in the first year of secondary school and we went on to win the All-England Championship that year.
"That's when I was scouted by South London and I went on to represent them. A small team now called AFC Lewisham then came in for me and I played there for a while.
"After that I was scouted by Millwall and that's where I properly started my football career until my contract ran out there."
With older brother, Dickson, already with City at this point and interest growing in a young Etuhu , Kelvin decided to make the move away from London.
He continues: "I had a few clubs in the north interested in me and I felt that the right club for me was Manchester City.
"Obviously, my brother was here and there were others I was familiar with like Shaun and Bradley Wright-Phillips, so I thought it would be a good move.
"Having been to Manchester before I knew it would be a good place to come."