Guzan has established himself as the No1 at Villa.
"Would I like to return to MLS one day? Yes, definitely. I was only a kid when I first went into MLS and it was still growing," he tells the English media. "To see now from watching the highlights on the internet and TV just how far it has come.
"Hopefully, I will get the opportunity, when I'm finished playing in Europe, to go back and play in it. Especially being from Chicago, I'd love to go back and play for the Chicago Fire in front of friends and family. That would be pretty neat."