Fans' favourite Hassell sustained the injury in the midweek draw with Derby and will play no part in the Tykes' last three matches.
But fellow defender Rob Edwards is available again after struggling with a hamstring problem since returning last month from his loan spell at Shrewsbury and Kelvin Etuhu, out for three games with a similar injury, is also back in contention.
Another defender, Tom Kennedy, is pushing for a recall after his one-game ban, but midfielder Stephen Dawson sits out the second game of his three-match suspension.
Manager David Flitcroft was forced to play teenage striker Reuben Noble-Lazarus at left-back on Tuesday night in the absence of Kennedy and Scott Golbourne (knee), but may make changes at the City Ground.
Defenders Jimmy McNulty (ankle) and Rory Delap (calf) remain sidelined as the Tykes bid to climb out of the bottom three with their first win in five league matches.
- Sports & Recreation
- Kelvin Etuhu