Etuhu missed the midweek draw at Cardiff with a hamstring injury sustained at Crystal Palace last week and was replaced in the starting line-up by Jim O'Brien.
O'Brien is hoping to continue, but midfielder Tomasz Cywka stepped off the bench at Cardiff and is pushing for a recall, as is striker Chris Dagnall.
Flitcroft has no other new injury or suspension problems, but defenders Martin Cranie (hamstring), Jimmy McNulty (ankle) and Rory Delap (calf), plus striker Reuben Noble-Lazarus (ankle) all remain sidelined and left-back Scott Golbourne is out due to a long-term knee injury.
The Tykes, two points above the relegation zone, have lost only one of their last six matches.
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- Disease & Medical Conditions
- Tomasz Cywka