Former Cobblers captain and player of the year Kelvin Langmead has left Sixfields after his contract was terminated.
Manager Chris Wilder has continued his squad restructuring by releasing Langmead, who has been with the Cobblers since August 2011.
The former Shrewsbury and Peterborough United central defender leaves the club with immediate effect, with his contract, which was due to expire in the summer, being paid up.
Langmead had been the subject of a loan bid from a Conference club last week but rejected the move.
“The club moves on,” said Wilder. “I have to take the emotion out of it and do what’s right for the football club.
“People will have their opinions on players, of course, and I’m sure people have their opinions on the meat pies at the ground and all sorts of other things, formations and transfer targets, whatever.
“The beauty of the game is that everybody has their opinion.
“It’s more noticeable these days because of social media and the internet.
“I back my judgement and the judgement of my staff.
“I’ve got a very clear vision of where I want this football club to go, we want to go forward.
“I always thank the players for their contribution, whether that’s been under me or under a previous manager, but we have to focus on the players that are going to take us forward.”
Langmead has made nine appearances for the first team this season after recovering from an Achilles problem.
He played just three times last season after suffering a knee injury towards the end the 2012/13 campaign, in which he was named player of the year at Sixfields and the team reached the league two play-off final.