The magazine claims that in an internal email, City's chief financial officer Jorge Chumillas wrote: "We will have a shortfall of 9.9m pounds in order to comply with UEFA FFP this season".
A statement from Etihad said: 'The airline's financial obligations, associated with the partnership of the club and the broader City Football Group, have always been, and remain, the sole liability and responsibility of Etihad Airways'.
In the first allegations on Friday, French investigative website Mediapart claimed Gianni Infantino - the current Federation Internationale de Football Association president who was then UEFA's general secretary - had "directly negotiated" the agreement with City to reduce their 2014 fine.
The revelation appears to be the latest evidence of a systematic attempt by City...
The disclosures came as Gianni Infantino, the Federation Internationale de Football Association president, defended his role in secretly helping City negotiate a FFP settlement with Uefa. "Of course we want to follow the rules", the City boss said. Both PSG and Manchester City are cheating and should be sanctioned. UEFA, FIFA and the Premier League, they do what they have to do. I am focussed on what happened on the pitch, in the locker room.
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The 21-year-old singer and actress will serve as host for the evening, as well as take the stage as a performer. United States actress and singer Hailee Steinfeld will host.
When Chumillas asked his colleague Simon Pearce if they could change the date of payments from the sponsors, Pearce allegedly answered: "Of course, we can do what we want".
Since Man City was bought with Abu Dhabi sovereign wealth in 2008, a team long in the shadows of more glamorous Manchester United has overtaken its rival on the field.
United travel to the Etihad on Sunday in the Premier League, with Mourinho aiming to become the first manager to defeat City in the league this season. UEFA's rules are created to encourage clubs to live within their means and prevent fatcat owners, many of them with unlimited funds, from buying their way to success to the detriment of less affluent rivals. "UEFA FFP compliance WILL NOT be achieved".
David Frommer, spokesman for the European Club Association, said the organisation had "full trust in UEFA's organs of control in holding clubs to account".
City CEO Ferran Soriano complained in one memo that ECA members were pushing for the UEFA rules - which many thought could curb the rise of Man City and Qatari-owned Paris Saint-Germain.