Rushden manager Garry Hill has placed four players on the transfer list as he continues to re-shape his squad. Midfielders Jon Ashton and Marcus Kelly and defenders Paul Watson and Glen Wilson have all been told they can go.
Ashton and Kelly had rejected offers of new deals, while Watson and Wilson have been made available despite having 12 months to run on their contracts.
Hill, who took charge of the Conference club at the end of February, released six other players last week.