"The Redskins' running back situation remained unclear Thursday as Clinton Portis (severe groin tear) suffered a setback while Ryan Torain (hamstring) participated in practice at Redskins Park.

Sidelined since suffering a third-degree tear in Week 4 against Philadelphia, Portis sat out most of practice and got only "a few reps in there," Coach Mike Shanahan said. The nine-year veteran has said he hopes to return to the lineup Monday night against the Eagles at FedEx Field, but Shanahan said Portis may have set himself back a little with his workload in practice this week and "was a little bit sore today."

Outside linebacker Brian Orakpo (back soreness) sat out practice, Shanahan said. Strong safety LaRon Landry (Achilles') was limited.

After Portis's injury was diagnosed, Shanahan said the team expected Portis to be sidelined four to six weeks. As of Sunday, Portis will have been sidelined six weeks.

Portis, however, has experienced swelling and soreness in his groin area while practicing this week, and "it kind of scares me," Shanahan said. "Normally, when you come off of this injury, your first week of practice, when you're trying to get back in football shape, and you feel good and it gets sore the next day, that's exactly what's happened.

"He had a good day yesterday and [he's] a little bit sore today. Didn't want to over push it, but we've got a few more days to practice and see how he feels. There's a chance. We'll just monitor it day by day.""