AC Milan owner Gerry Cardinale admits one fan has him "stressing me out".

Cardinale has been staying at a home owned by Milanista Alfredo, who has decked out much of the house with Milan souvenirs.

“It stresses me out, to be honest with you," Cardinale told GQ.

"In a way that I've never experienced before. My thing was always to look at sport as any other industry. You could be manufacturing widgets in Omaha or you could be owning the Giants in New York City. It should be the same.

“It's stressful to own things in general, it's stressful to put this kind of money to work, it's stressful to be a fiduciary for third-party capital. I now have a new level of stress I've not experienced before, which is Alfredo. It bothers me."

Asked about foreign investment into Italian football, Cardinale also said: "It's the right question to ask. It's not gonna stop. Once capitalism gets involved, there is no moderating it. We are going into corporatised ownership. It's an arms race. And it's just gonna keep going. Capitalism will find its way into the cracks.

“There were no ownership restrictions… sovereign governments, oligarchs, wealthy individuals can all buy teams."