Nottingham Forest left-back Omar Richards is making “good progress” in his recovery from a hairline fracture of the leg.
But it will still be after the World Cup break before the summer signing makes his debut for the Reds. And head coach Steve Cooper now finds himself without a number of defenders, following the news Giulian Biancone is expected to miss the rest of the season with an ACL injury.
Centre-back Moussa Niakhate and left-back Harry Toffolo were already ruled out with hamstring problems. Meanwhile, midfielder Jack Colback has recently been struggling with a back issue.