Simon Grayson is waiting on the fitness of Richard Naylor, Andrew Hughes, Shane Lowry and Mike Grella ahead of the Tranmere clash.
Hughes came off ill during the draw with Brentford on Saturday and Lowry, Grella and Naylor all missed the clash with injuries.
Grayson told the club's website: "Hughesy went off ill, but full credit to him that he started the game because he did well.
"
Shane had a problem with his knee.
It's something he's had before and it was swollen on Friday.
Mike Grella also picked up an injury on Friday which meant he was out as well.
"Richard Naylor picked up a thigh injury against Huddersfield last weekend and that's why he was out.
"
We'll keep an eye on all of them and see how things go."