Midfielder Spicer has signed on loan from Doncaster and American defender Lichaj was snapped up from Aston Villa.
Spicer could go straight into the starting line-up while Lichaj will be on stand-by to start at right-back if captain Stephen Purches fails a late fitness check.
Purches missed last weekend’s defeat by Huddersfield with a calf injury.
Goalkeeper Jamie Jones has recovered from the back injury which ruled him out against Walsall a fortnight ago but he only made the bench last Saturday with Glenn Morris keeping his place.
Romanian striker Adrian Patulea staked his claim for a recall with five goals for the reserves on Wednesday.