Northampton Town want a deal worth up to £1million for captain Charlie Goode, TEAMtalk understands.
Sunderland are also said to have expressed an interest.
Goode impressed hugely for Keith Curle’s side, skippering them to play-off final victory against Exeter City.
The 24-year-old signed on a permanent deal from Scunthorpe United last summer. Northampton are insistent, however, that they do not need to sell.
Their current club record is £500,000 but they want that broken and even doubled before they allow Goode to leave.
“I have spoken to Charlie about it before, and I think the interest has ramped up,” chairman Kelvin Thomas told the club website.
“When Charlie came into the club, Keith spoke to him about being captain. It was agreed with him that if he came in and did well then we certainly wouldn’t stand in his way if a Championship or Premier League-type big club came in for him.
“We live by what we said, but it is going to take a significant fee for that to happen. That was always the agreement, that it would always take a fee.
“I am not sure what the club record is (£500,000 for goalkeeper Bunn). I am sure that any type of deal that we would be looking for would be a club record deal, but there is nothing on paper at the moment.
“There has been some interest, but we haven’t even indicated numbers.
“We have told clubs that if they really are interested in Charlie then they need to make an offer and go through the appropriate channels. We will discuss it on its merits.
“Keith and myself have a fantastic relationship with Charlie. The lad wants to come in and do well whatever happens.
“Even if there is discussion all the way up to the end of the transfer window, we are 100 per cent confident that Charlie will put in the performances when required in a Northampton Town shirt.”