Blackpool striker DJ Campbell is a serious doubt for the play-off semi-final first leg against Nottingham Forest.
Campbell was forced off early in the second half during Sunday`s 1-1 draw at home to Bristol City and was replaced by Stephen Dobbie.
He attempted an overhead kick but landed awkwardly on his arm and sustained soft tissue damage.
Boss Ian Holloway, who named an unchanged side in Sunday's game against the Robins, could now be forced to hand Dobbie a starting role.
Striker Stephen McPhee and defender Danny Coid are set to remain sidelined through injury and Hameur Bouazza is still out because of a groin problem.
But Holloway has no other major concerns and said: "We know we can score so we're a threat."
Captain Paul McKenna is hoping to play some part for Forest.
The influential midfielder has been sidelined since early March after suffering a knee ligament injury against Swansea.
McKenna has resumed full training but remains some way off match fitness and Reds boss Billy Davies is weighing up whether to take a gamble on the former Preston skipper.
Davies will make changes after continuing to give his fringe players match time at Scunthorpe on the final day of the regular season.
Lee Camp will replace Paul Smith in goal while Chris Gunter should return at full-back and Dexter Blackstock is expected to start in attack. Chris Cohen, Robert Earnshaw and Radoslaw Majewski are also likely to be recalled.
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