Walker back for Iron Scunthorpe will welcome Josh Walker back from suspension for their clash with Sheffield United. Walker served a one-match ban in midweek following his red card against Hartlepool and will return to the midfield against the Blades. Skipper Paul Reid is still sidelined with his hand injury but is expected to be fully fit in the next week. Callum Kennedy has returned to light training after his toe injury but the game comes too soon for a return. Damien Mozika (ankle) and Michael Collins (tendonitis) remain sidelined with their injuries. Jimmy Ryan, who was forced off with a knock last weekend, completed 20 minutes from the bench in the Johnstone's Paint Trophy defeat to Notts County and is expected to return to the first XI as Alan Knill's side look for their first win of the season. Sheffield United have no new injury concerns for the trip. Darryl Westlake is back in contention after overcoming a thigh problem and could make his first appearance of the season. Deadline-day signing Dave Kitson will not be considered for selection as he is still working on his fitness. Fellow striker Chris Porter remains sidelined with a knee problem and is not yet ready for a return. Manager Danny Wilson has no other injury worries and is likely to name an unchanged line-up from the side that beat Bournemouth 5-3 last weekend. Strike-duo John Cofie and Nick Blackman will continue a partnership which has yielded four goals in their last three games. Ryan Flynn will continue in midfield after scoring twice on his return from injury.