The Bills signed backup running back Fred Jackson to a four-year contract extension on Wednesday. Jackson played at Division III Coe College and spent a few years playing in the U.S. Indoor Football League. "I traveled a road that not a lot of people take or will take," Jackson said. "I'm happy that I took the road, because I'm appreciative for being here and being able to have had the success that I have had." The financial details were not known as of Wednesday afternoon. "It let me know where I stand with the team," the running back said. "I thought it would be done a lot sooner than it actually was. It wasn't, but we're here now. I could just focus on playing football now."