Jackson suffered a "lower leg injury" during practice Friday, according to ESPN's Mike Rodak. He was able to leave the field under his own power, but did not return to drills. Jackson, who is 33 years old, is coming off a 2013 season in which he tallied 1,277 yards from scrimmage and nine touchdowns.
Jackson's stock is down this year, and that has a lot to do with concerns about his age and ability to hold up physically. There aren't many effective 33-year-old running backs in the NFL. Not much is known about his injury at this point, and we'll continue to follow the story. But if Jackson misses time, RB Bryce Brown stands to benefit the most, as he'll have a much easier road to carries. Bills RB C.J. Spiller 's value will receive a slight bump, as will the draft stock of RB Anthony Dixon . Prior to the injury, Jackson was being taken 46th among running backs. If he's hurt in any significant way, that number will rise a bit higher. Draft Jackson with extreme caution.