Chesterfield have 28 players on contract at the Proact
Here's a look at who will be a free agent at the end of the season and who still has time to run on their deal.
Shwan Jalal (2020) - The 35-year-old signed a two-year deal last summer, having departed National League champions Macclesfield. He's kept eight clean sheets in his 13 appearances for Town.
Joe Anyon (2019) - The goalkeeper signed a two-year contract in 2017 but has made just 20 appearances since then. He hasn't played a single competitive fixture this season and was transfer listed by Martin Allen.
Brad Barry (2019) - the right-back was one of the first players signed by Gary Caldwell and Guy Branston in the summer of 2017. He's made 50 Town appearances and spent last Autumn on loan at Dover.
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Drew Talbot (2019) - Technically a three-time Spireite, Talbot was released at the end of last season, then re-signed by Martin Allen on a one-year deal. He may not play again this season after a series of operations on his knee.
Ify Ofoegbu (2019) - The teenager, who made his first team debut in October 2016, played his first league games for the club in December. His deal, which was signed in October last year, runs out this summer.
Jerome Binnom-Williams (2019) - ankle surgery derailed the left back not long after he penned a two-year deal in the summer of 2017. Since Town's relegation to the National League, he's played 26 league games.
Sam Muggleton (2019) - the left sided player with the ridiculously long throw inked a one-year deal last summer and the club have an option for a second year. He's currently out on loan at Darlington in the National League North.
George Smith (2019) - The left-back was bought from Northampton last January and given an 18-month deal. This season he played just twice before joining Dover on loan. He's back at the Proact but hasn't played for Sheridan yet.
Michael Nelson (2019) - The 38-year-old centre-half, described as 'very old' by Martin Allen in a press release, has played once since September. He lasted nine minutes on Boxing Day, was substituted and hasn't played since.
Laurence Maguire (2021) - the home grown centre-half recently signed a contract extension that will keep him at the club for a further two years. He's coming back from injury and should add to his 21 appearances this season.
Will Evans (2020) - Roy of the Rovers himself, Evans has had an action packed time of it lately. He's scored goals, saved a penalty and cemented a place in the defence. He signed a two-year deal last summer.
Jamie Sharman (2020) - another academy product, who made his first team breakthrough this season, Sharman signed an 18-month deal and the club have an option for a further year.
Robbie Weir (2019) - the midfielder signed late summer 2017 and signed a one-year deal, but made enough appearances last season to trigger a second year. Looked set to leave last summer, but stayed. Back in the side now.
Sam Wedgbury (2020) - the combative midfielder joined last summer on a two-year deal but injured his ACL three games into the season and required surgery. He's 'working his socks off' rehabbing, says John Sheridan
Jonathan Smith (2020) - he made his loan move from Stevenage permanent and signed a deal until next summer. He's become the captain and been ever present in the line-up.
Curtis Weston (2021) - the midfielder has started all but two of Chesterfield's National League games since signing in the summer.
Charlie Wakefield (2019) - It will soon be two years since Wakefield broke into the first team during Gary Caldwell's reign. But since his April 2017 debut he's made just three more appearances, all of which came last season.
Joe Rowley (2021) - In January 2018 the youngster signed a three and a half year contract extension. Still only 19, he's made more than 20 appearances this season to take his Town tally to 60 games.
Charlie Carter (2020) - Chesterfield signed the goalscoring midfielder from Woking last summer and handed him a two-year deal, with an option for a third year. He twice damaged his ankle and had surgery but will soon be fit again.
Kyel Reid (2019) - Added to the squad midway through August, Reid has played 19 times in the league for Town this season. The winger is yet to score a goal as a Spireite.
Lee Shaw (2020) - Shaw was signed from Grantham on a two-year deal with an option for a third year. He's a striker but has played wide right for Town and endeared himself to fans with his work rate.
Marc-Antoine Fortune (2019) - The Frenchman signed in the summer. He's the club's leading goalscorer in league action with six goals. He was transfer listed by Martin Allen before the manager's exit.
Louis Dodds (2019) - Signed an 18-month deal last January. Left on a season long loan at Port Vale in the summer, but was sent back to the Proact recently. Has made one substitute appearance since.
Gozie Ugwu (2019) - Injury disrupted his first season as a Spireite, Martin Allen predicted he'd score 'lots of goals' this season, but by September sent him to Boreham Wood on loan, where he's scored four times.
Tom Denton (2020) - Bought from Alfreton in September. Town's top goalscorer with 10 goals, two of which came in the league. Has been used as a substitute thus far by John Sheridan.
Luke Rawson (2020) - Another home grown talent. The teenage striker made his first team debut in December. He's currently out on loan with Sheffield FC, for whom he started last night in a win over Tadcaster Albion.
Levi Amantchi (2021) - The Chesterfield FC academy product signed his first professional deal, a two and a half year contract, back in October. The club have an option for a further year. He's made 11 first team appearances.
Scott Boden (2020) - Chesterfield bought the striker on 30th January from Gateshead. They have an option to extend his 18-month deal for a further year. He scored on his debut on Saturday.