Tom Flanagan replaces Davies in defence, Montrose, Whelpdale and Weston also return with Payne, Allen and Jackman making way.
Gillingham: Stuart Nelson, Matt Fish, Joe Martin, Tom Flanagan, Adam Barrett, Lewis Montrose, Chris Whelpdale, Charlie Lee, Myles Weston, Danny Kedwell, Deon Burton
Subs: Tommy Forecast, Andy Frampton, Callum Davies, Jack Payne, Charlie Allen, Ben Strevens, Adam Birchall.
Chesterfield: Tommy Lee, Terrell Forbes, Neal Trotman, Sam Hird, Liam Ridehalgh, Drew Talbot, Mark Allott, Sam Togwell, Danny Whitaker, Marc Richards, Carig Westcarr.
Subs: Richard O'Donnell, Mark Randall, Jack Lester, Craig Clay, Scott Boden, Jacob Hazel, Tendayi Darikwa.
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