Port Vale are Saturday's visitors for Ernie Moss Day at the Proact Stadium, a match which both sides will be looking to win to squeeze themselves into the play-off places.Moss is Chesterfield's record goalscorer, with 191 goals over three spells and close to two decades, with the Spireites legend also having a spell at Vale Park, winning player of the year for the Valiants in 1982.
Moss is currently suffering from Pick's Disease, a rare form of dementia, and throughout the day money will be raised for the Dementia UK charity.
As part of the occasion, limited edition badges - available at the Club Superstore for a minimum donation of £3, with all profits going to charity - have been produced and a special edition of the Inspire matchday magazine contains exclusive features on Moss as well as a pull-out poster.
Brampton Brewery have produced a special 'Ernie 8' ale which will be available in the concourses, with 20p from every pint going to charity, and Moss himself will be presented to supporters at half time.
The match itself finds two teams in good form and separated by just goal difference a mere point behind the play-off positions.
The Spireites have spent the week on FA Cup duty, winning away at MK Dons in the second round replay, before travelling to Scunthorpe and recovering from a two goal deficit at the interval to earn a further replay.
Since the Spireites grabbed a 2-1 win at Vale Park in late August, Saturday's visitors have brought in former Wales defender Rob Page as manager and have been heading up the league table, winning three of their last four games.
The Chesterfield squad came through the Glanford Park match with no new injury concerns, so while captain Ian Evatt remains on the sidelines, Jimmy Ryan is the only other player struggling for fitness ahead of the game, with a late decision expected on the midfielder's thigh injury.
Ahead of the Proact Stadium clash Paul Cook spoke about how his team has faired with players being absent over the course of the season.
He said: "I live in the area and people love talking about the club. Sometimes we think that if we have an injury or suspension it will affect us really greatly and we won't know what to do without them.
"But I think the squad's proved over the last few weeks that we can cope without anyone and our club is a strong club."
Having changed their manager since the last match between the sides Cook went on to talk about his impression of how Page has done so far in the hot-seat.
"Rob's done a fantastic job," said Cook. "Obviously he was on Mickey's [Adams] staff, Mickey's moved on and Rob's taken over. He'll have his own style of management and his own ethos on the game.
"Rob was an international footballer, he had a fantastic career and everyone's lucky to be a manager. You have highs and lows but Port Vale are in a fantastic league position today, then can go above us if they win tomorrow, if we win we'll go a little bit clear, then we'll move on to the next game.
The match at Vale Park earlier this season was a feisty affair, with Chesterfield's captain Evatt being dismissed for two yellow cards during the game. Cook spoke about clubs and their desire for victory.
He said: "You've got to be competitive, in modern football we speak about a will to win, but we must all want to win.
"Ourselves, Port Vale, we all want to win. Unfortunately, come 5 o'clock tomorrow evening we can't all win and you can only prepare your team and do what you think's right.
"Port Vale will be like ourselves thinking they can get into the play-offs, so we look forwards to an entertaining game tomorrow."