Bradford City are demanding a pay-out from Manchester United for former junior Tom Cleverley.
The Sun says Bradford, the club which nurtured him as a kid, demand United pay 10 per cent of all loan fees they received for Cleverley while he was learning his trade at Leicester City, Watford and Wigan Athletic.
To a club Bradford's size, which has twice been in administration, the sum they are due from United is potentially enormous, possibly six figures.
The deal, which took midfielder Cleverley to United from Bradford as a 12-year-old schoolboy, stated the Yorkshire club would be paid 10 per cent whenever his registration was transferred.
It did not stipulate it had to be a permanent transfer. Bradford argue they are entitled to payments for all three loans.
United are believed to have offered £50,000 to settle the argument.
The Bantams have been unable to find out what fees United received for Cleverley's loan deals - but believe there was a down-payment of around £300,000 made by Wigan when he moved to the DW Stadium last season.