With his deal to run down in 2017, the Brazilian has been linked with both clubs.
Agent Paulo Tonietto told Gazzetta Fanta: "It's normal for a player of his calibre to attract the interest and attention of the big clubs. I want to emphasize, however, that there is nothing concrete with these clubs.
"I have not had any contact with Juventus yet, none of them have contacted me. But, in the future, nothing should be excluded, but now the situation is this.