Port Vale trio Chris Lines, Chris Birchall and Chris Neal have all signed contract extensions with the League One club.
Midfielder Lines, 28, has penned a new two-year deal at Vale Park, while 30-year-old midfielder Birchall has committed himself to the team for a further year.
Meanwhile, 28-year-old goalkeeper Neal has put pen to paper on a two-year extension.
Vale secured a ninth-placed finish in the League One table last season under Micky Adams, who recently signed a new 12-month rolling contract with the Valiants.
