The 26-year-old had been at the Ligue 1 side for less than six months and he was officially presented by the Isolani on Friday.
“To sweat everyday for this jersey is my commitment and my promise,” Rugani said on Twitter.
The centre-back had played for Juventus for five seasons and won multiple domestic honours with the Italian giants, but he was sent on loan to Rennes, who paid €1.5 million to sign him.
Rugani’s time in France had been marred by a hamstring injury and after playing just two competitive matches with the French club in the first half of the 2020/21 campaign, they sent him back to the Bianconeri.
— Daniele Rugani (@DanieleRugani) February 5, 2021