Oxford United have turned down a second bid from Bristol Rovers for striker James Constable.
Rovers have already had a bid for the 27-year-old rejected, before the new offer was refused by the U's.
Chairman Kelvin Thomas said: "After receiving a second offer from Rovers which was discussed over the weekend we decided to turn the offer down."
Thomas also confirmed U's midfielder Adam Chapman has rejected an improved contract offer from the club.
"We have made two offers to Adam, both improving his existing agreement, however Adam feels he deserves a better financial package," he said.
"Adam has clearly stated in discussion that he remains fully committed to the club and wants the opportunity to earn the level of contract he feels he deserves."