Penny has a hand injury that includes a broken finger, Bob Condotta of The Seattle Times reports.
The Seahawks were clearly high on Penny being their backfield staple after picking him in the first round of this year's draft. The last week has been rough for Penny, however, as he logged eight carries for 16 yards in his preseason debut and suffered this injury during Monday's practice. Chris Carson already seemed to have an advantage in a battle for the starting job, and his prospects only improve with Penny now uncertain for Week 1.