Juan had no doubts over signing a new four-year contract with Roma.
"My family and I are very happy in Rome," the defender told La Gazzetta dello Sport. "Roma are a great club.
"We had a series of problems this year, mostly injuries. My objective is return to the Champions League and win something."
When informed of rumours linking him to Milan, Juan said: "Milan are a great club, but Roma are important, too.
"I would also like to once again thank the Sensi family, who have given me confidence even after a season in which I played little because of injuries."