Crawley have added Claude Davis and Andy Drury to their injury-hit squad ahead of the clash with Bradford.
Jamaican defender Davis arrived as a free agent following his release from Crystal Palace over the summer, and midfielder Drury has agreed an initial three-month loan from Ipswich.
Both could go straight into the starting line-up against the Bantams as Town are without six first-team players, five of them defenders.
Dean Howell and Kyle McFadzean are on the sidelines with thigh injuries, John Dempster has a groin problem, Jamie Day is still missing with back trouble and club captain Pablo Mills is recovering from an ankle operation.
Midfielder Sergio Torres is also in the treatment room with a groin problem.
Bradford manager Phil Parkinson will assess the fitness of in-form duo Jamie Devitt and Kyel Reid.
Devitt, on loan from Hull, bagged his first goal for the Bantams in Tuesday night's defeat to Port Vale but has been suffering with a dead leg.
Reid, Parkinson's first acquisition at Valley Parade, missed training through illness.
Parkinson told Bradford's official website: "Devitt has picked up a bit of a dead leg so we'll have to have a look at him before this weekend. Reidy has been feeling ill as well.
"Both of them have been great performers for us since they've come to the club so it would be a shame if they weren't available at the weekend."
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