Trent Williams MRI shows no damage

ASHBURN, Va. -- Washington Redskins coach Mike Shanahan says an MRI exam on starting left tackle Trent Williams' injured left knee showed no structural damage.

Shanahan says that Williams' knee is sore Monday and his status for Washington's game against the St. Louis Rams won't be known until later in the week.

The fourth overall pick in this year's draft hurt his left knee and a toe with about 1½ minutes left in the fourth quarter of Washington's 30-27 overtime loss to the Houston Texans on Sunday. Williams was helped off the field and did not return to the game.

Shanahan says he's still awaiting results of an MRI on Williams' toe.