Williams has been sidelined since early November due to a groin injury and recently suffered a setback, but the centre-half is expected to return to the substitutes' bench.
Midfielder Tom Adeyemi has shaken off an ankle injury that left him doubtful for last week's postponed game with Crewe, while central defenders Rob Kiernan, on loan from Watford, and Luke Oliver should also be included in the squad following respective hamstring problems.
Defender Lewis Hunt (knee) is not yet ready to return and long-term absentees Simon Ramsden (calf) and midfielder Michael Flynn (double hernia) are hoping to be back in action by the end of January/early February.
Source: PA
Source: PA