Bielsa had admitted that Leeds sent officials to spy on the training sessions of their opponents in the Championship.
Accroding to Sky Sports News, they could be punished as per Regulation 3.4 in the EFL rules.
Regulation 3.4 states: "In all matters and transactions relating to The League each Club shall behave towards each other Club and The League with the utmost good faith."
Many clubs in the Championship filed complaints about Leeds' behavior.
It is unclear if it would only be a financial punishment, or whether any points deduction would be involved.