Following discussions with Gabriel Zakuani, Northampton Town can confirm the club will no longer be offering a deal.
"We have been speaking to Gaby and his agent to try and get comfortable with his level of international commitments. Unfortunately we are unable to do that," said manager Justin Edinburgh.
"Gaby is a top professional, we wish him all the very best for his future career and thank him for his efforts at Sixfields."
In the 2016/17 season, Zakuani made 24 starts and one substitute appearance for the Cobblers, scoring twice.