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Carlisle boss Greg Abbott will be without defender Peter Murphy for Tuesday's home game against fellow strugglers Hereford.Murphy picked up a groin injury at Southend on Saturday and was assessed by a surgeon on Monday morning. 

David Raven was recalled to the side that lost 3-0 at Roots Hall in a right-back role, but he will move into the middle to cover Murphy's absence. 

Paul Thirlwell overcame a knee injury in time to play at the weekend and should again feature after suffering no ill-effects, but defenders Danny Livesey and Evan Horwood (both knee) are both out. 

Abbott is desperate for his side to arrest a run that has seen them win just one of their last eight games and slip into deep relegation trouble.