Arsenal goalkeeper Szczesny will reclaim his place if the Bees can extend his loan spell in time, and Ipswich defender Smith returns after being denied permission to play in the midweek FA Cup defeat by Doncaster.
Tottenham teenager John Bostock will also be in the squad, although his current spell expires after the game.
A fifth loanee, Rhys Murphy, has gone back to Arsenal after suffering an ankle injury but fellow striker Carl Cort returns having been ineligible on Tuesday night.
Source: Team Talk
Source: Team Talk