Coventry are sweating on the fitness of striker Cody McDonald as they prepare to travel to Cardiff.
McDonald was only fit enough for a place amongst the substitutes in the 1-1 draw with Watford at the weekend and may have to settle for a similar role again as he struggles to fully overcome a groin problem.
Andy Thorn also has concerns over winger David Bell who has missed the Sky Blues' last three games with a groin problem.
His loss is felt harder for Thorn due to the fact that fellow wideman Carl Baker is out for the foreseeable future with a hamstring injury.
Hermann Hreidarsson is out for the rest of the season having dislocated his shoulder, while Richard Wood's knee injury is set to keep him out for a while longer yet.
Jordan Clarke was substituted with cramp towards the end of the weekend draw but will not miss the trip to Wales.