Could Chris Polk unseat Bryce Brown as the Eagles' backup running back?

If you have been actively reading BGN's Brandon Lee Gowton's training camp reports, you'll know that Eagles' running back Chris Polk is having a fantastic training camp following a drop in weight this offseason. The 5-foot-11, 222-pound running back is showing great quickness and making big plays during 11-on-11 and 7-on-7 drills. Polk is having such a great camp that former Eagles' scout and current NFL Network analyst, Daniel Jeremiah, believes that the former Washington Huskie could be more than just the team's third-string running back:

I won't be surprised if Chris Polk emerges as the #2 RB for the Eagles. He had a great practice.

— Daniel Jeremiah (@MoveTheSticks) August 6, 2013

The second-string running back position is currently held by fellow second-year running back Bryce Brown, who was very impressive at times during last season. However, Brown is not without his faults and Polk may have closed the gap between them over the last two weeks. Reports from training camp have indicated that Brown is still bouncing to the outside too frequently on runs and there are still concerns with his ball security issues, which were on display quiet frequently last year. Polk has shown the ability to run between the tackles with speed and power, so the new coaching regime could opt to put him behind LeSean McCoy in the lineup.

While Polk didn't get reps on offense last season, he was a workhorse at Washington. He eclipsed 1,000 yards three out of his four seasons as a Husky and had a school-record 21 100-yard games. Polk finished his college career with 4,049 yards.

Whether Polk surpasses Brown or not, he should see plenty of time on offense. With the wide receiver group looking more and more like a MASH unit, the running game will be all that more important. This season, look for Polk to be used in several ways as he poses as a versatile threat to opposing defenses.