Washington Redskins running back Clinton Portis was at the University of Pittsburgh Medical Center Friday to have his concussion evaluated.

Portis saw the same doctors who examined Eagles back Brian Westbrook, who has suffered two concussions in the last month. Portis was hurt two weeks ago against Atlanta. He did not play last week against Denver and has been ruled out for Sunday's game at Dallas.

Defensive tackle Albert Haynesworth is questionable for Sunday because of a sprained left ankle. Haynesworth was unable to practice this week. He tested his ankle on a treadmill Friday.

Coach Jim Zorn said Haynesworth remains a game-time decision.