Werder Bremen star Diego will consider offers at the end of the season.
Manchester City and Chelsea are chasing Diego, who said: "I have received offers from some major clubs from around the continent.
"The Werder general manager, Klaus Allofs, is aware of the offers.
"On the one hand, it fills me with pride - as you would expect - to attract the interest of great clubs like Juventus.
"On the other, I have found all my expectations met in Bremen and I am very happy here, as well as the fact that I have a contract until 2011.
"Maybe I will leave, maybe I will stay and maybe I will even decide to extend my contract."