Davies missed the Bantams' 3-2 first-leg defeat at Valley Parade after being sent off in the last match of the regular season against Cheltenham.
Manager Phil Parkinson must decide whether to recall Davies to the starting line-up or stick with Rory McArdle and Michael Nelson in central defence.
Kyel Reid will continue to be monitored as he manages an on-going groin problem. The winger stepped off the substitutes' bench and played for just over half an hour in the first leg and suffered no initial reaction.
Parkinson, who has no other new injury or suspension problems, has the option of recalling the likes of midfielder Nathan Doyle, winger Zavon Hines and defender Carl McHugh, but is not expected to make too many changes as his side look to overturn a one-goal deficit.
- Sports & Recreation
- Phil Parkinson
- Rory McArdle