Chris Polk could be a riser

With the NFL combine coming up, Steve Muench of Scouts Inc., took a look at three players who could see their draft stock increase dramatically Insider with a strong performance. His list of three includes former Washington running back Chris Polk.

Muench on Polk:

Polk is coming off a somewhat underwhelming performance at the Senior Bowl, where he didn't look as quick as he appears on film, so running well in Indianapolis would help Polk regain some momentum. He's said he expects to run in the 4.4-second range in the 40, which would be well below the four-year combine average (4.60) for running backs.

The link also includes a very cool, behind-the-scenes video of former USC offensive tackle Matt Kalil training for the combine, plus five additional players to keep an eye on, including former Arizona State defensive back Omar Bolden, who enters the workouts with some medical questions.