Brentford may be unable to name all seven substitutes, with Ryan Dickson (hamstring), Kevin O'Connor (ankle) and Charlie McDondald (head) struggling.The trio were all injured in Friday's draw at Millwall while defender Mark Phillips (knee) is still sidelined.
Exeter manager Paul Tisdale looks set to recall striker Stuart Fleetwood to the starting line-up.
Rob Edwards (hamstring) is a doubt, while Adam Stansfield (abdomen) and Alex Russell (back) are both out.
Source: BBC Sport
Source: BBC Sport