Depends where & what investigation leads to??
If they are checking payments to & from our club then yes it may lead to a ban.
If we have paid & inflated sponsorship, spent way beyond our means for the 2nd time UEFA have the right to either ban us from competition, fine & give a transfer ban.
The UEFA Financial Fair Play Regulations(FFP) were established to prevent professional football clubs spending more than they earn in the pursuit of success and in doing so getting into financial problems which might threaten their long-term survival.[1] They were agreed to in principle in September 2009 by the Financial Control Panel of football's governing body in Europe (Union of European Football Associations – UEFA). The regulations provide for sanctions to be taken against clubs who exceed spending, over several seasons, within a set budgetary framework. Implementation of the regulations took place at the outset of the 2011–12 football season.[2] The severest penalty is disqualification from the European competitions.[3] Other penalties included fines, the withholding of prize money, and player transfer bans.