Bradford midfielder Nathan Doyle is expected to be named in the starting line-up after his red card against Bristol Rovers last weekend was rescinded.
Doyle is clear to play in the second round tie after the Football Association overturned referee David Phillips' decision to send him off in the 90th minute on Wednesday.
Manager Phil Parkinson could hand debuts to teenage loan signings Blair Turgott and Curtis Good. Winger Turgott and Australian defender Good arrived last week from West Ham and Newcastle respectively.
Winger Kyel Reid is not yet ready to return following his long-term groin injury and striker Zavon Hines could be out for another two weeks with an ankle problem.
Central defenders Andrew Davies (knee) and Luke Oliver (Achilles) are both sidelined due to season-ending injuries and John Egan, signed on loan from Sunderland as cover, has returned to his parent club after breaking his right leg, so Carl McHugh is expected to resume alongside Rory McArdle.
Brentford welcome back Jonathan Douglas.
The midfielder missed last weekend's 2-0 victory over Sheffield United through suspension after picking up his fifth caution of the season in the win at Swindon.
On-loan defender Rob Kiernan was asked to replace Douglas in the midfield for the victory over the Blades, and Douglas is expected to be restored to the line-up for the trip to Yorkshire.
Boss Uwe Rosler has no new injury or suspension fears and is expected to play a strong line-up as the Bees aim to extend their eight-game unbeaten run.
Leon Legge (groin) and Tom Adeyemi (hamstring) remain sidelined with their injuries while Farid El Alagui (knee) and Kevin O'Connor (ankle) are long-term absentees.