Allegri's departure from the Juve hotseat was announced in May and Sarri will be tasked with continuing an incredible run of eight consecutive Serie A titles as well as finally taking the club all the way in the Champions League for the first time since 1996.
Sarri has agreed to an initial three-year contract that will keep him at the Juve helm until 2022.
In his most recent season in Italy, Sarri oversaw Napoli challenge Juve for the title, amassing a club record 91 points. With Chelsea, he guided the club to a third place Premier League finish in difficult circumstances, reached the final of the Carabao Cup and won the Europa League.
Source : 90min