Japan's midfield star Hidetoshi Nakata, the subject of media reports about a possible transfer, has said he wants to stay at Italian Serie A club AS Roma.

Italy's Gazzetta dello Sport quoted Nakata on Saturday as calling speculation over a move to Parma or English champions Manchester United "incomprehensible" with over four years left to run on his existing contract.

"I signed a five-year contract with Roma and I want to honor that deal. I can't understand why people are saying I'm about to leave -- I want to stay at Roma," Nakata told the newspaper.

On Friday, the Corriere dello Sport ran a front-page article reporting that the 23-year-old World Cup player could be released by Roma at the end of the season.