Rovers have made one change from the side that defeated Rotherham United on Tuesday night.
Back into the starting eleven comes Peter Whittingham, he is preferred to Corry Evans in the centre of midfield. The Northern Irishman drops to the bench.
Today's visitors make three changes from the side that drew with Scunthorpe in midweek.
Conor Wilkinson, Lee Martin and Josh Parker all come in, with Luke O'Neill, Alex Lacey and Elliott List the men making way.
ROVERS: Raya, Williams, Smallwood, Samuel, Whittingham, Mulgrew (c), Caddis, Antonsson, Dack, Downing, Bennett.
Subs: Leutwiler (GK), Hart, Chapman, Graham, Ward, Gladwin, Evans.
GILLINGHAM: Holy, Ehmer, Zakuai, Hessenthaler, Wilkinson, Martin (c), Ogilvie, Parker, Nugent, Clare, Byrne.
Subs: Arnold (GK), Oldaker, List, Simpson, Cundle, O'Mara, Starkey.