Campbell has since been bailed by the National Crime Agency, but he is expected to play no part in this weekend's match.
Gary Bowyer's side, who could move into the top half with a victory, have won just once in their last five games, although their last outing saw them pick up a good point away to high-flying Queens Park Rangers courtesy of a goalless draw.
Millwall, meanwhile, will be looking to further extend the gap separating them from the relegation zone, with 22nd-placed Yeovil Town currently sitting five points behind the Lions.
Steve Lomas's side recorded a valuable 2-1 win over Wigan Athletic in their last outing, but they have struggled on their travels so far this season, winning just one of their 10 away games in all competitions.
Possible starting lineups
Blackburn: Eastwood; Spurr, Dann, Hanley, Henley; King, Williamson, Lowe, Taylor; Cairney; Rhodes
Millwall: Forde; Dunn, Beevers, Robinson, Malone; Woolford, Abdou, Trotter, Feeney; Waghorn, Morison
Sports Mole says: 2-1