Defender Cooper misses out for Millwall through suspension
Defender Jake Cooper will miss Millwall's League One clash with Chesterfield after picking up a one-match ban.
The Reading loanee was sent off for two yellow cards as Millwall edged past Premier League champions Leicester City 1-0 at the weekend and into the FA Cup quarter-finals.
Millwall have cut ticket prices for Tuesday night's New Den encounter to thank supporters for the atmosphere created against Leicester.
Supporters who have already purchased full-price tickets will be refunded the difference.
Relegation strugglers Chesterfield will be without the suspended centre-half Tom Anderson.
Anderson was sent off in Saturday's defeat by Bury and misses the match.
Gary Caldwell is still waiting for a first win since becoming manager and may have a decision to make on his goalkeeper if Ryan Fulton is passed fit to challenge Thorsten Stuckmann, who debuted at the weekend.
Jon Nolan has a hamstring injury and Ched Evans has missed the last two matches with an ankle complaint.