An MRI revealed that he has a tear to the lateral meniscus. When he can return cannot be determined until after he has the surgery to repair the damaged cartilage.
Williams missed the final six games of 2003 with a right knee injury.
A first-round pick in 1998, Williams started 58 straight games -- 32 at free safety and 26 at strong safety -- before his injury last year.
Brunell was injured in the third quarter of the Redskins' 20-14
loss to the Giants last week and at first was doubtful for
the Cowboys game. The hamstring improved quicker than expected,
however, and Brunell was back in pads on Friday.
He took most of the snaps in practice Saturday, and coach Joe
Gibbs announced his decision after the practice. Brunell said the
hamstring had improved every day.
The decision means that Patrick Ramsey will miss the chance for
his first start of this season.
Information from The Associated Press and SportsTicker was used in this report.