The teams are in for this afternoon's league two match at the New York StadiumMartin Allen makes five changes to the side that lost 2-0 in the cup at Preston last weekend.
Stuart Nelson returns between the posts after serving his one match suspension while Andy Frampton replaces Callum Davies at centre-half.
Jack Payne and Charlie Lee are restored to the midfield at the expense of Montrose and Weston
Danny Kedwell partners Deon Burton in attack, with Birchall dropping to the bench. There is also a first appearance for recent signing centre-half Devante McKain on the subs bench.
Gillingham: Stuart Nelson, Matt Fish, Joe Martin, Andy Frampton, Jack Payne, Charlie Allen, Deon Burton, Danny Kedwell, Adam Barrett, Romain Vincelot
Subs: Tommy Forecast, Lewis Montrose, Bradley Dack, Myles Weston, Adam Birchall, Danny Jackman, Devante McKain
Rotherham: Andy Warrington, Johnny Mullins, Ian Sharps, Kari Arnason, Liam Ridehalgh, Michael O'Connor, Jason Taylor, Lee Frecklington, Daniel Nardiello, Ben Pringle, Alex Revell
Subs: Scott Shearer, Kayode Odejayi, Nicky Hunt, Kieran Agard, Luke Rooney, Courtney Cameron, Jack O'Connell