The 19-year-old is playing for Manchester City's Elite Development Squad following a successful trial period.
"There were also offers from Italy and other English clubs, also some Belgian ones," he told website Bediables.be.
"After they heard I had contacts with City they started to call me. I choose City because it was a huge challenge."
Denayer plays in the EDS defence with another Belgian, Mathias Bosaerts, who joined City in 2012 from Anderlecht.
"We talk French on the pitch. That's easier," he adds.
"When Patrick Vieira, our manager, gives his instructions in English, I don't understand him sometimes - I'm still learning English. Luckily French is also his mother tongue."
"I have already trained a few times with the first team. It was a huge experience for me," he added.
"He gives me good advice. This year I want to train more with the big boys, develop my skills and I also dream of some playing time, maybe in the cup or so.
"Next year I want to be a part of the first squad."
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