"City were interested but there was no negotiation," he told Sky Sport Italia.
"We have not heard about any proposals. We have never been looking to do a deal so the figures quoted have made no difference to us.
"Daniele is a player different from many others, both on a technical level and what he can give to Roma in the next few years. If we were going to consider a sale, we would have had a lot to think about.
"We have looked to benefit the squad rather than make an economic decision. When you decide to take that route, even if an offer arrives you don't take it into consideration."