But City are also challenging the legality of the new rules that are designed to prevent the wealthiest clubs from inflating the value of deals to spend more on players and comply with Profit and Sustainability rules (PSR).
City are hoping a panel rules for the third time in their favour, arguing that the Premier League amended rules in November that it has now been decided should never have been in place.
City brought the legal challenge after being blocked by the Premier League from advancing new more lucrative deals with Etihad Airways and First Abu Dhabi Bank.
Manchester City have scored a legal victory over the Premier League in a long-running battle over financial rules - but both sides have conflicting interpretations of the ruling's significance.
So Premier League chief executive Richard Masters believes those new rules replaced the ones now found to be void by the tribunal - attempting to underplay the impact of this ruling.