Torain rushed for 742 yards on 164 carries last season in just 10 games. He was drafted in the fifth round by the Broncos in 2008, when Redskins coach Mike Shanahan was still running the show in Denver. He played sparingly in Denver but was thought to be the main man in D.C. until the Redskins signed former Cardinals running back Tim Hightower this summer. Torain's injury would appear to have set him back in the competition with Hightower for the starting role.
Gibson, a second-year player out of Ohio State, had been cut by the San Francisco 49ers. Washington, Chicago and Pittsburgh put in claims for him, but Washington ranked highest on the waiver priority list by virtue of having the worst record of the three last season, according to the Post.
The Associated Press contributed to this report.