Sarri left Chelsea in England after just one season to join the Italian champions, who parted company with Massimiliano Allegri at the end of the 2018/2019 campaign.
Before Sarri’s England adventure he previously took charge of Napoli for three seasons, providing Juventus with the toughest opposition for the league title.
The 60-year-old’s family are based in the city of Florence, where Juventus will take on Fiorentina in the Italian Serie A on Saturday.
The game will be Sarri’s first in the Juventus dugout after he missed the side’s first two games of the season due to pneumonia.
Sarri revealed his mother is a Fiorentina fan and that explains why she was upset when he decided to join Juventus.
"She was not happy at all," Sarri said at a news conference regarding his mother’s reaction to the Juventus move.
Explaining the Fiorentina link he said: "My grandmother lived 500 metres from the stadium, so our family were all committed Viola fans, apart from me, as I supported Napoli.
“I have many memories of this stadium, but unfortunately the only one I can see right now is my most recent, as I lost a Scudetto here.
"I need to swiftly replace that with a positive memory.”
Juventus have started the season with two straight victories and another win against Fiorentina will brighten their chances of winning the Scudetto nine times on the spin.
