Antonio Conte, the man who helped Guberti make his name at Bari, is said to be considering making a bid for him in January, initially on loan.
However, Claudio De Nicola told TMW: "For Roma, Guberti is unsellable. Actually, he is playing thanks to his desire. He has never given up and has always given his best.
"At the beginning, the Coach had to get results, and trusted in the old guard, but with time he has begun to respect Guberti."