Washington Redskins coach Mike Shanahan was knocked to the turf when defensive back Brandyn Thompson slammed into him on a play during the team's first full-squad workout in its new indoor practice field. Shanahan remained on his back for a couple of minutes while he was checked near midfield. Read more: http://espn.go.com/nfl/story/_/id/7...d-ground-washington-redskins-brandyn-thompson
