MILLWALL have to beat West Brom on Saturday to guarantee staying out of the relegation zone with seven games left this season.
All eyes will turn to Rotherham's result at home to Nottingham Forest after the final whistle at The Den. The Lions are a point above the Millers and could climb two places, above Wigan and Reading, if results go their way.
The Baggies have won their three league games under caretaker James Shan, who took over after the sacking of Darren Moore.
Only a collapse would see West Brom miss out on the play-offs, and they still have an outside chance of automatic promotion.
Shaun Ferguson is suspended and Tom Bradshaw and Murray Wallace are the only players out through injury for the Lions.
Millwall boss Neil Harris has varied his side's formation recently, last weekend's 4-1-3-1-1 – with Ryan Leonard anchoring midfield and Ben Thompson playing off Lee Gregory up front – rattling Leeds until the home side's late comeback.
West Brom have injury problems in midfield.
James Morrison is likely to miss the game with a hamstring problem he picked up in the 3-2 win over Birmingham City.
Matt Phillips is also set to be out, and 38-year-old Gareth Barry is a doubt. Left-back Kieran Gibbs is in contention for a return after recovering from a hip problem.
Possible Millwall starting XI
4-4-1-1: Martin; Romeo, Pearce, Cooper, Meredith; J Wallace, Leonard, Williams, Marshall; Thompson; Gregory.
Millwall 17/10 Draw 23/10 West Brom 6/4
This season's meeting
West Brom 2-0 Millwall (Gayle 68, Gibbs 76)
Millwall: 4-4-2: Amos; Romeo, Webster, Cooper, Meredith (Elliott, 84); Wallace, Williams, Leonard, Skalak (O'Brien, 72); Morison, Bradshaw (Gregory, 75).
Prediction: Millwall 2-1 West Brom
Image: Millwall FC