Blades concern over quartet
Danny Wilson has concerns over Richard Cresswell, Neill Collins and Marcus Williams ahead of Sheffield United's trip to Exeter.
Striker Cresswell has been struggling with a shoulder injury that has required injections and restricted him to the substitutes' bench last week, Collins sustained a bruised knee in last Saturday's draw with Stevenage and fellow defenders Matt Hill and Williams are also nursing knocks.
Wilson has no other new injury or suspension problems for a game United have to win to stand any chance of winning automatic promotion, but the absence of leading goalscorer Ched Evans continues to leave a big hole up front.
Chris Porter, Michael O'Halloran, on loan from Bolton, and James Beattie are all vying for a starting place up front, while Danny Philliskirk gives Wilson an alternative option.