West Ham United have rejected a second bid from Arsenal for their captain Declan Rice.
It is understood the Gunners' latest offer for the 24-year-old England midfielder could have been worth as much as £90m in total to the Hammers.
However, Arsenal were proposing the initial fee for Rice to be £75m, spread over four payments.
West Ham rejected Arsenal's opening bid last week and want a larger fee and a different structure to the deal.
Club chairman David Sullivan has said he is "99%" sure Rice, who led the Hammers to victory in the Europa Conference League earlier this month, will leave West Ham this summer.