Shakhtar Donetsk have reported Manchester City to FIFA over claims of late payments for Elano's transfer fee.
The money is a 'solidarity payment' on European transfers. It usually equates to five per cent of the total sum - in this case £9.5m - and is distributed between clubs that played a part in the youth development of the player. Donetsk claim City have withheld the money and the case will now be heard by FIFA.
A spokesman for the world governing body said: "We can confirm Donetsk have lodged a claim with FIFA regarding this matter. As the relevant procedure will start in due course, we can't provide further comments for the time being."