Brentford manager Andy Scott is waiting to find out the extent of goalkeeper Nikki Bull's shoulder injury.
Bull damaged his shoulder during training on Friday, which ruled him out of the game against Stockport the following day.
Bees boss Scott told the Hounslow Chronicle: "We've got him to see a specialist to see how serious it is.
"He saw someone on Friday but there was some inflammation there.
"We'll send him back this week when it's calmed down a little bit. It might need an injection or something like that to ease the pain."