As per La Gazzetta dello Sport, AC Milan have 4 goals to strengthen the team in the transfer market window of this summer: a central defender, midfielder, playmaker and a right-winger. After the arrival of Divock Origi, the club directors Paolo Maldini and Frederic Massara must accelerate and work on the next move.

After losing out on the Botman race, it is possible that a large part of such investment would go to the attacking midfield area. Charles De Ketelaere is a name that is very much liked but there is great competition from Premier League club Leeds United.
As for Chelsea's Moroccan winger who is 29 years old, Hakim Ziyech, such a transfer deal would take time as the clubs must agree on the salary which is the obstacle for Milan now. If The Blues agree to pay part of his salary, then AC Milan will close the negotiations successfully.
