Northampton boss Stuart Gray is still hoping to persuade defender Jason Crowe to sign a new deal at Sixfields.
Crowe joined Northampton in 2005 after two years with Grimsby
The 28-year-old former Arsenal trainee, who joined the Cobblers in 2005, is out of contract this summer.
"As you would expect, there is other interest in Jason, but we are still in the frame to re-sign him," manager Gray told his club's website.
"If he stays, that is great - if he goes, we will wish him well. But we are planning for both eventualities."
Northampton have signed a new shirt sponsorship deal with estate agents Jackson Grundy.