Washington Redskins fullback Darrel Young said that the left hamstring injury that forced him out of practice on Monday remains sore, but that it is believed that he suffered a strain, and not a tear. But Young doesn’t know how long he will be sidelined.

The third-year pro, who is entering his second season as a starter, watched the Redskins’ morning walk-through and walked around gingerly. But he said that the hamstring feels better than it did Monday night.

“I’m a little tight right now,” Young said. “I’m going to go get worked on and see if I can practice or not.”

Young wasn’t sure if he would have an MRI on the muscle, but it appears unlikely that he would practice.

Young suffered the injury early in Monday’s practice while running a pass route against linebacker Lorenzo Alexander in one-on-one drills. Young had his hamstring wrapped with ice, and watched the remainder of practice. The fullback said it’s the same hamstring that forced him out of Washington’s third and fourth games of the 2011 season.

Although it’s early, and although the only other fullback on the roster is recently signed Dorson Boyce, Young said he feels a sense of urgency to return to action.

“I want to be here. And the first way to get yourself out of a place is not being on the field. Hopefully they give me some time to work with it and go from there,” said Young, who last season recorded six carries for 33 yards and a touchdown, had 15 catches for 146 yards and also contributed on special teams. “Shanahan finds guys who are hungry. That kid, Boyce, is real hungry. He’s in the league for a reason. And last year when I got hurt, Chris Cooley came in and played fullback. So they always have a plan. … We’ve got Robert Griffin. They can do a lot of things. I just want to be here.”

Meanwhile, backup tackle Willie Smith, who twisted his left knee and was forced out of Monday's practice, did take part in Washington's walk-through Tuesday.