Higuain joins Milan on a seaon-long loan and he will be joined by Mattia Caldara, who joins the club in a swap deal that sees Bonucci return to Juve.
Caldara, meanwhile, has signed a long-term deal with the Old Lady that will see remain at the club until 2023.
A statement from Milan read," AC Milan announces that it has acquired from Juventus FC the right to the sports performances of the players Gonzalo Higuain and Mattia Caldara .
Gonzalo and Mattia are two important pieces of the new era of the Club.
Gonzalo Higuain arrives at AC Milan with the onerous loan formula until June 30, 2019 with the right of redemption.
Mattia Caldara finally arrives as part of the exchange transaction on a par with Leonardo Bonucci, who returns to Juventus. The 24-year-old defender has signed a contract that binds him to AC Milan until 30 June 2023.
The Club will dedicate the whole day tomorrow to the presentation to the press and to the fans of the two newcomers, according to the following program."