Pablo Mills and Sergio Torres return from suspension for Crawley.
Defender Mills has completed a six-match ban for his part in the infamous brawl at Bradford last month which also saw him stripped of the captaincy.
Winger Torres returns after serving a three-game suspension for a red card at Barnet three weeks ago.
But Town are still without midfielder Hope Akpan, who is serving a four-match ban after he was sent off against AFC Wimbledon a fortnight ago.
Right-back David Hunt is fit after a broken foot but striker Leon Clarke is doubtful with a foot injury.
Town are unbeaten in their last 13 matches and a win will see them promoted with a game to spare if Torquay lose to Crewe.
Meanwhile, Hereford are not expected to have any new injury or suspension concerns for this massive clash.
Bulls boss Richard O'Kelly welcomed back skipper Rob Purdie from a hamstring injury for last weekend's goalless draw against Northampton.
The versatile midfielder was the only change as he came in for Sam Clucas, who will be pressing his claims for a recall alongside the likes of Harry Pell, Stefan Stam, Yoann Arquin, Joe Colbeck, Nathan Elder and Richard Peniket.
Full-backs Ryan Green (knee) and Benoit Dalibard (hamstring) continue to be monitored as they look to make their respective comebacks.
Hereford, two points adrift of safety with two games remaining, could haul themselves out of the drop zone with an unlikely win at third-placed Crawley, but they also know victory for third-bottom Barnet at home to AFC Wimbledon would leave them needing all three points to avoid the drop.