Chesterfield have signed former Port Vale defender Daniel Jones on a two-year deal.
Jones, 27, was sacked by Vale in April after a training ground altercation with team-mate Doug Loft left the latter with a broken cheekbone, though he decided not to take legal action.
The former Wolves and Sheffield Wednesday full-back is the Spireites' first summer signing.
Paul Cook's side won promotion from League Two as champions this season.
Jones told the club website: "I'm really delighted to have joined Chesterfield because it's a very ambitious club.
"It's a very exciting time at the club following the title win and I can't wait to be involved."