BRENTFORD are sweating on the fitness of star striker Clayton Donaldson for tomorrow's winner-takes-all showdown with Doncaster.
The 22-goal frontman is a doubt for the game after pulling up during the final session this morning at the club's Jersey Road training base.
The Bees will give the 29-year-old a fitness test in the morning to see if he can play any part in the sell-out clash at Griffin Park.
Donaldson's absence would be a big blow for Brentford, who must beat Rovers to snatch the second automatic promotion spot in League One.
Follow me on Twitter .