MILLWALL face a Gillingham side that has lost four successive League One games and is without several key players.
Bradley Dack, their midfielder who scored two goals in his last three games against the Lions, is suspended after his red card in the 3-2 defeat to MK Dons last Saturday.
Gillingham have conceded 12 goals in that losing streak and are just two points above the relegation zone.
It’s a different story for Millwall who could go fifth in the League One table if they win and other results go their way at the weekend.
Millwall have won their last three games 2-1 against Gillingham, including this season in the league and Checkatrade Trophy.
Lee Gregory scored a dramatic 98th-minute penalty to snatch the win in the last game of last season at Priestfield that secured a fourth-place finish and a home tie in the second leg of the play-off semi-finals.
Millwall manager Neil Harris was hoping Gregory would train late this week. If the 15-goal striker is ruled out then Aiden O'Brien will start up front with Steve Morison.
The only other injury concern is Jordan Archer. If he remains sidelined then Tom King will continue in goal.
Mahlon Romeo is set to retain his place and face his former side at the ground where he was sent off last May.
As well as Dack, Gillingham boss Adrian Pennock is without injured defender Bradley Garmston and midfielder Scott Wagstaff.
Meanwhile, referee Keith Stroud has been removed from taking charge of the fixture.
Stroud awarded a free-kick to Burton on Tuesday night after Newcastle's Dwight Gayle encroached in the penalty area as Matt Richie was taking a successful penalty kick. The official should have ordered it to be retaken.
This will be the 100th fixture between the two clubs.
Millwall record against Gillingham:
Won 51 Drawn 21 Lost 27
Probable Millwall team:
4-4-2: King; Romeo, Webster, Hutchinson, Craig; Wallace, Thompson, Williams, Ferguson; O’Brien, Morison.
Gillingham 100/30 Draw 13/5 Millwall 4/5
Image: Millwall FC