Juan insists he is happy at AS Roma.
The Brazil defender has been linked with a return home at Flamengo.
"Of course I would like to return," Juan said. "I have been thinking about going back ever since I left Flamengo.
"But I have a contract until 2013 and I intend to respect it until the end.
"If at that moment Flamengo's doors are still open, then I would love to return."