Sassuolo chief Giovanni Carnevali has urged Gianluca Scamacca to stay with West Ham.
The striker is on brink of returning to former club Roma.
But Carnevali, who sold Scamacca to West Ham a year ago, said: “If I were him, I'd stay in the Premier League and I wouldn't go none of these clubs: he only stayed there for a year, he had an injury that conditioned him, as soon as he arrived, he didn't know the championship, the language and the world of England.
“He would do well to play his cards in the Premier and not want to return to Italy, especially to his home, in Rome.
"Certain challenges must be faced without being satisfied. He would like to return home, but I don't know if this thing will do him any good."