Manchester City's sponsorship deal with Etihad Airways will be analysed by Uefa to ensure it complies with European football's strict new financial rules. In a 10-year deal reportedly worth £400m, Etihad now sponsors both the club's shirt and the stadium.
"I have some questions, yes," said Jean-Luc Dehaene, the chairman of Uefa's Club Financial Control Panel.
"But it would be dangerous for our authority if we take judgements without facts."
The 71-year-old former Prime Minister of Belgium confirmed his panel would "benchmark" all deals to make sure they were "fair value".
"If we see clubs that are looking for loopholes we will act," he said.
"It is not enough to say 'we've got a sponsorship contract and that's OK' if the contract is out of line."
As well as the shirt and stadium, Etihad also sponsors The Etihad Campus which is being developed around the ground. This will create an expanded academy, sports science centre and training ground, as well as office and retail space and a 7,000-seat stadium for youth games.
All of this investment is exempt from the FFP rules as it is not deemed football-related. Any income earned, however, does count.
