Metz have lodged an official complaint with FIFA claiming that they are owed money by Fulham from the deal that took Louis Saha to Manchester United.
Saha joined the Cottagers from Metz in a £2.1million deal in June 2000 and the French club insist that the terms of the transfer entitled them to 15 per cent of any profit Fulham made from selling the player on.
The striker moved to Old Trafford for £12.8million in January and Metz believe that as a result they are owed £1.3million, and have begun attempts to recover the money.
A FIFA spokesman revealed: "We can confirm we have received a request from Metz over a compensation issue regarding Louis Saha.
"As with all matters like this, the legal considerations must be fully explored and all the information gathered, so it is impossible to say when the outcome will be known."
A Metz statement confirmed: "This transfer represents two million euros which is not insignificant for a club like Metz.
"We must also point out that both English clubs made official on their respective websites the transfer fee, which is 18 million euros."