Juventus are facing FIFA action over Paul Pogba's move to Manchester United last summer.
The inclusion of massive commissions to agent Mino Raiola may well have breached third party ownership rules.
“We can confirm that disciplinary proceedings have been opened against Juventus FC. We cannot comment further as proceedings are ongoing," a spokesman for FIFA told ESPN.
“We can confirm that no disciplinary proceedings have been opened against Manchester United."
If Juve are found guilty of breaching third-party rules, they could receive a fine or even a transfer ban.