Chelsea loaned Tiemoue Bakayoko in the summer transfer window after Maurizio Sarri arrived at Stamford Bridge.
The Frenchman was out-of-form under Antonio Conte, and the board decided to let him leave for San Siro, and AC Milan manager Gennaro Gattuso spoke at his press conference ahead of Roma match.
At the beginning of the loan AC Milan hero frequently criticised the France international, but after several matches, the 24-year-old midfielder has improved his game and won over the heart of manager and the fans.
“Roma? In times of difficulty they has always done great performances. They have great players and a coach who has been doing well for years. We must be very careful.
“Piatek? I do not like the word managed, your instinct must be left alone. We must not give him too much information, we must leave him free to follow his instinct.
“Bakayoko? At this moment we can not do without him, he must remain at Milan. He is proving technical skills, but you know that I do not keep the accounting but it is certainly giving us fundamental improvements, he can become an important player for this club for many years.”