Swansea have doubts over Alan Tate, who has missed the last three games with an ankle injury, but Angel Rangel is in line for a return from a groin injury
Striker Craig Beattie (hip) is out, while midfielders Ferrie Bodde and Jordi Lopez's seasons are already over.
MATCH PREVIEW
Two victories from their last three matches have eased Swansea City's jitters as they battle to hold onto their place in the top six.
But those wins have both been at home. Paulo Sousa's side have won only one of their last six away matches and face a Sheffield United side that has been strong at Bramall Lane this season.
The Swans have been under pressure from Blackpool, who are a place below them in seventh and hammered them 5-1 last month.
But a defeat for the Tangerines on Saturday would mean that a victory for Swansea would clinch a play-off place for the Welsh club. It would also be only United's fourth home defeat of the season.
MATCH FACTS
Head-to-head
• Sheffield United have won 16 and Swansea eight of the 33 previous matches between these clubs.
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• The Blades are unbeaten in 11 home league games against Swansea, and have won the last three.
Sheffield United
• United have won one of their last seven matches but they have lost only one of their last 14 at home, winning nine.
• The Blades have conceded fewer goals in the last five minutes of Championship matches than any other club (five).
• They have committed 595 fouls in league matches this season - more than any other team in the division.
• Glenn Little is hoping make his 350th club career start.
Swansea
• Swansea have won only two of their last nine matches and have lost their last three away games.
• Paulo Sousa's side has kept more clean sheets (23) and won more matches 1-0 (nine) this season than any other Championship side.
• They are the only team in the second tier not to have won at least one league game after conceding the opening goal.
MOST RECENT MEETING
Swansea 2-1 Sheff Utd (26 September 2009)
Swansea scorers: Trundle (pen) 52, Butler 82.
Sheff Utd scorer: Quinn 73.
Source: BBC Sport
Source: BBC Sport