Manchester City launched 'unprecedented legal action' against the Premier League' on Tuesday.
City are still awaiting an outcome for 115 charges for allegedly breaching financial rules - that are strongly denied by the club - with a hearing now set for November.
According to The Times, the Etihad outfit are looking to end the league's Associated Party Transaction (APT) rules, which they claim are unlawful.
It was reported in February that City were warning of the threat of legal action against the league's APT rules and the outlet have confirmed the club went ahead with it.