Bradford City have made a final offer to Guiseley for striker James Hanson, in a bid to stop the summer signing's fee being decided by a tribunal.
Hanson has scored four goals in 11 starts since signing from City's non-league neighbours in the summer.
But the two clubs are still to agree a fee for the six foot three 21-year-old.
If a deal cannot be agreed, it is understood that it would be the first time a league club has been taken to arbitration by a non-league club.
City claim that the Unibond League side want more for Hanson than the reported four-figure sum they paid for his co-striker Gareth Evans in the summer.
But now City have moved with a final offer, which would also involve Guiseley claiming 25 per cent of any future transfer fee and the income from a pre-season friendly.
"We've gone back to Guiseley and upped the offer," joint chairman Mark Lawn told the Bradford Telegraph and Argus.
"We don't think we can go any further. It's up to them."
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