Portis preaches unity, professionalism

After seven games in 2008, Redskins running back Clinton Portis had 818 yards, four 100-yard games and was leading the NFL in rushing. After seven games in 2009, Portis has 490 yards, no 100-yard games and ranks eighth in the league in rushing. Now, Portis heads into a bye week knowing that the offensive line he runs behind will be without left tackle Chris Samuels, right guard Randy Thomas and -- almost certainly -- tight end Chris Cooley for the rest of the season. "It's going to be difficult," Portis said. "We lost two offensive linemen, we shuffled two offensive linemen, now we lose Chris Cooley. The only mainstay from our opening day roster that's on that line is [center] Casey Rabach and [left guard] Derrick Dockery.