Washington Redskins running back Clinton Portis will miss his second straight game as he recovers from a concussion.
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Coach Jim Zorn on Thursday ruled Portis out for Sunday's game at Dallas.
Portis has not been able to practice since he was injured in a helmet-to-helmet hit against Atlanta.
Ladell Betts is set to start for Portis for the second consecutive week.
Zorn says defensive tackle Albert Haynesworth remains a game-time decision with a sprained left ankle. The coach says Haynesworth is ``coming along'' and that the ankle's swelling is starting to go down.
Oddsmakers from online sports book SPORTSBETTING.com have made the Redskins 11-point underdogs at the Cowboys in Week 11. The over/under total for that game has been set at 41 points.
Posted: 11/19/09 5:11PM ET