Lee Frecklington is in contention as Peterborough return to League One action.
Midfielder Frecklington has missed the last 11 games with an ankle injury but has been passed fit to be included in Gary Johnson's squad.
However, playmaker George Boyd remains a doubt after he turned an ankle in training which forced him to miss out on the win over Walsall last Monday and the FA Cup defeat at Fulham at the weekend.
Midfielder Charlie Lee is also battling an ankle injury which has ruled him out of the last two matches.
New signings Kieran Agard and Jonathan Obika are both available to make their league debuts after coming on against the Cottagers.
Agard has arrived from Everton while fellow striker Obika is on loan from Tottenham.
Brentford will be without Sam Wood, Sam Saunders and Carl Cort for the trip to Peterborough.
Wood is still recovering from the broken arm he suffered last month, fellow winger Saunders has a hamstring injury and striker Cort is a long-term absentee with a torn Achilles.
But Bees boss Andy Scott has no new injuries to contend with following Saturday's defeat at Yeovil.
Millwall loanee Marc Laird should keep his place in midfield after an encouraging debut and he could be joined by ex-Posh midfielder Toumani Diagouraga.
Goalkeeping coach Simon Royce, 39, will be on the bench again as cover for Richard Lee after loanee Ben Hamer returned to Reading last week.