Doncaster will be without striker Billy Sharp for the South Yorkshire derby clash against his parent club Sheffield United.

Sharp, who has scored 15 goals for Rovers since arriving on a season-long loan in September, is not available for manager Sean O'Driscoll, who is expected instead to hand a start to James Hayter.

O'Driscoll has several selection headaches as key players return to full fitness following injury.

Central defender Adam Lockwood is pushing for his place back in the starting line-up after a foot injury, while Shelton Martis and Sam Hird were partnered together for the midweek win at Peterborough.

Defender James O'Connor and midfielder Mark Wilson are also hoping to return after dropping to the substitutes' bench on Tuesday night.

Rovers, unbeaten in their last five league matches, could close to within one point of the play-offs with victory over the Blades, who lie one place and a point above their rivals.

United manager Kevin Blackwell must decide whether to opt for the experienced Ian Bennett in goal or Estonian international Mihkel Aksalu.

First-choice Mark Bunn has been recalled by parent club Blackburn following injury to Paul Robinson and Bennett and Aksalu, who signed a two-and-a-half year deal in January when he arrived from Flora Tallinn, are vying to replace him.

Skipper Chris Morgan will complete his two-game ban, so Nyron Nosworthy should continue alongside Marcel Seip in central defence.

Midfielder Lee Williamson (hamstring) and on-loan Arsenal defender Kyle Bartley (food poisoning) returned to the substitutes' bench in midweek and could feature in Blackwell's plans.

But on-loan Fulham full-back Toni Kallio (calf), Jamie Ward (hamstring) and Ched Evans (collarbone) are still out, as are long-term absentees Gary Naysmith and Ryan France (both knee) and Derek Geary (ankle).

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