Brentford boss Nicky Forster is hopeful Charlie Macdonald will be fit.
The striker missed Saturday's 3-0 loss at Hartlepool with a dead leg sustained in training and will undergo a late fitness test.
On-loan Sunderland midfielder Adam Reed, who had been suffering from a groin problem, made his long-awaited debut as a second-half substitute against Pools and, after impressing, could be in line for his first start.
Defender Leon Legge and forward Lewis Grabban will also be targeting places in the XI.
Sam Wood will miss out again as he continues his rehabilitation from a broken arm. He is set to see a specialist this week as he looks to return to full training.
Brighton boss Gus Poyet has no new injury or suspension worries.
Centre-back Adam El-Abd again misses out as he completes a two-match ban for picking up 10 yellow cards this season.
Tommy Elphick will, therefore, keep his place after taking El-Abd's spot in Saturday's thrilling 4-3 win over Carlisle.
Veteran defender Radostin Kishishev returned as a 70th-minute substitute against the Cumbrians after a month on the sidelines and will again take his place on the bench.
On-loan West Brom forward Chris Wood is pushing for a starting place after appearing as a second-half substitute at the weekend.
Long-term absentees Jim McNulty (foot), Jamie Smith (foot) and Alan Navarro continue to be unavailable.