Manchester City's appeal to stop UEFA from investigating Financial Fair Play breaches has been thrown out, leaving them at risk of being banned from European football.
The Court of Arbitration for Sport announced this on Friday afternoon, stating that their mandate did not allow them to make such rulings.
"At CAS we can only hear appeals against final decisions," said Matthieu Reeb, the court's secretary-general.
"CAS ruled that the appeal filed by Manchester City football club is inadmissible,"
UEFA was investigating potential wrongdoing from the club following reports that the club's Abu Dhabi owners inflated sponsorship agreements to comply with requirements.
The club was not happy with the proceedings and chose to challenge it at the Arbitration court.
This is the second time the Premier League defending champions are being investigated by the body, following a recent probe into the club's acquisition of young players.
City avoided any punishment after admitting to the charges and were only ordered to pay CHF370,000 (£314,577) for breaching article 19 of FIFA's rules on the status and transfer of players.
If found guilty, City can be banned from playing in the Champions League.
AC Milan became the latest club to be banned from European competition for a year, following a breach of FFP.