Midfielders Jean-Francois Christophe and Alan McCormack are suspended for Saturday's clash with Exeter City.
Christophe serves the second of a four match suspension after being sent off against Charlton Athletic last month.
Meanwhile, McCormack sits out one game after seeing red against Hartlepool United last weekend.
That means that Anthony Grant is set to be recalled to the starting line-up following his return from an ankle injury.
Grant has been missing from first team action for six weeks with the problem but came thought 60 minutes for the reserves midweek.
Number two goalkeeper Kelvin Jack is sidelined with a slight hamstring problem meanwhile under 18's keeper Daniel Bentley will deputise on the bench.
Tickets are still available for the vital League One clash against the Grecians with both sides in the bottom four.
To purchase your tickets by calling the Blues Box Office on 08444 77 00 77.
