According to NFL.com.
Running back Clinton Portis is expected to miss four to six weeks after being diagnosed with a third degree groin separation, coach Mike Shanahan said Wednesday.
The injury will not require surgery, according to Shanahan.
Portis said Sunday that he felt a "pop" in his groin before leaving the Redskins' 17-12 road victory over the Philadelphia Eagles. His playing time already was on the wane with the emergence of Ryan Torain, who was promoted from the practice squad two weeks ago.
Torain ran 18 times for 70 yards and one touchdown against the Eagles. Portis has just 195 yards on 49 carries this season.
"When you lose some players during the season, other guys have to step up," Shanahan said. "Obviously, Ryan—he has had a little playing time and we'll see what he can do. And Chad (Simpson), we'll get a chance to evaluate him. Those two guys will start off as one and two."
Torain took all of the first-team reps in Wednesday's practice,according to the team's official website.
Portis missed the last eight games of last season after suffering a severe concussion in a helmet-to-helmet hit.
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