John Dempster and Kyle McFadzean are 50/50 for Crawley's game against Swindon as Steve Evans' men aim to bounce back from their 6-0 defeat to Morecambe at the weekend.
Dempster missed the defeat with a slight calf problem and a groin injury kept Kyle MacFadzean out of the side, but both will be hopeful of proving their fitness ahead of the fixture against Paolo Di Canio's side.
Midfielder Scott Neilsen played 30 minutes after coming off the bench at the weekend on his return from injury and may force a starting place.
Defender Dean Howell is ruled out with a calf injury, while club captain Pablo Mills (ankle) and Jamie Day are also sidelined.
Swindon have been buoyed by the return of defenders Alessandro Cibocchi and Alberto Comazzi for their trip to Crawley.
Cibocchi missed Saturday's 2-0 victory over Southend due to injury but has recovered in time to face the Red Devils, while Comazzi is available again after serving a one-match ban.
Midfielder Oliver Risser, however, will not play a part after limping off 15 minutes into the weekend win with a leg problem.
Meanwhile, centre-back Aden Flint has yet to recover fully from a knock despite returning to training.
Forward Lukas Magera (hamstring) will not travel to the Broadfield Stadium, while midfield man Abdul Said is a long-term absentee.
Town are looking for their third straight victory in League Two.
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