Maccarone said: “After the disappointment of last season, things had seemed to be going better for me under the new manager.
“However, after our last chat I understand that there is no place for me anymore and therefore my departure is unavoidable.
He added: “My wish is to return to Italy. People have mentioned Torino, but for now… I will concentrate on the rest of my contract with Middlesbrough and then we will see.”
