Skipper Jackson has missed three matches with a groin problem and striker Kermorgant has been carrying an ankle injury for five weeks.
They have edged closer to fitness over the international break, but manager Chris Powell is conscious that both players attempted comebacks from injuries earlier this season only to break down again.
Powell has no new selection worries following their last outing, a 0-0 draw against Blackpool, but defenders Leon Cort and Chris Solly are still on the sidelines due to knee problems.
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- Chris Powell