Rotherham have doubts over Ryan Taylor and Nicky Law.
Taylor suffered a back injury in Good Friday’s disappointing 2-2 draw with Northampton after scoring the Millers’ second goal and is rated highly doubtful.
Law sustained an ankle problem in a challenge and had to come off in the second half at Sixfields as Andy Scott’s men threw away a two-goal lead which has further harmed their chances of making the play-offs.
Both men went in to see physio Dennis Circuit on Saturday to give themselves the best chance of making Monday’s game at Don Valley.
Andy Warrington remains a doubt after missing the last three matches with a foot problem and Johnny Mullins is a long-term absentee following surgery to repair a dislocated knee-cap.
Kevin Maher could return for Gillingham as they look to get their play-off push back on track.
The experienced midfielder was given a rest on Saturday as Barnet thumped the Gills 4-2 but he is set for a recall by boss Andy Hessenthaler.
Midfielder Curtis Weston missed out at the weekend with a recurrence of his knee problem and he is unlikely to be pushed straight back in.
Striker Dennis Oli remains sidelined with a troublesome hamstring problem that has blighted his season, while Stefan Payne also misses out again with a knock.
Joe Martin – son of former England defender Alvin – also missed out against Barnet with an injury so John Nutter is in line to start again.