Crewe defender David Artell is set to miss the game against his former club Morecambe on Friday.
Artell has not resumed training since aggravating a hamstring injury during the defeat at barnet 10 days ago.
"Dave won't be ready," Alex boss Dario Gradi told the club's official website. "He hasn't trained with me yet.
"He isn't too severe but we are hopeful he will play again before the end of the season.
"Of course he will be disappointed to be missing out against his former club, but we have enough cover at centre-half at the moment so it will give someone else a chance."
Patrick Ada deputised for Artell against Lincoln at the weekend but Adam Dugdale is also an option for Gradi.