The on-loan West Brom striker has impressed the Belgium skipper this season and he rates the 19-year-old very highly.
"We are lucky to have him for our national sides because I believe he is one of the biggest talents in Europe," the City skipper told his club's website. "We have Romelu and Christian Benteke and they are both young and will only get better.
"In fact, if you look at all the Belgian players in England such as Eden Hazard, Simon Mignolet, Mousa Dembele, Jan Vertonghen, Marouane Fellaini, Kevin Mirallas and Thomas Vermaelen, they are all young - 26 and under - and very talented. They will all continue to improve. It is exciting for our country."