Kory Sheets has something to prove to Raiders, the NFL

Daily Raiders blog for NBC Bay Area website: Running back Kory Sheets didn't get a chance to prove himself with the 49ers, Dolphins or Panthers, but now that the Raiders have signed him, he says he can do what he did in the CFL, where he was a standout. http://www.nbcbayarea.com/news/sports/Raiders-Newest-Running-Back-Has-Something-to-Prove-245836341.html