Coach Mike Shanahan said Saturday that Stallworth needs some time to heal up. Stallworth has been bothered by the hamstring throughout much of training camp, and he aggravated it during Thursday's preseason win over the Tennessee Titans.
He already has an uphill battle to make the regular season roster at a crowded position.
There was good news for rookie safety Phillip Thomas, who sprained his left foot in the game. Shanahan said doctors have ruled out a fracture or more serious injury.
The Redskins cancelled Saturday's practice due to rain. Shanahan said he was glad it happened because he has so many players banged up.