UPDATE: Williams has a sprained knee, according to Chris Russell of ESPN 980.
The Redskins' final drive has not gotten off to a good start. On second down, Donovan McNabb was sacked by Mario Williams, causing a third and long. Worse, prized rookie Trent Williams was injured on the play.
Williams fell backwards on the ground and was clutching his left knee for a long time. Two trainers came in to help Williams off the field, and the was undergoing stability tests on his knee. We will keep you posted on his status.