Jackson injured his hamstring during training camp on Monday, according to Falcons digital media manager Jay Adams via Twitter. Adams says that it was not the same hamstring that kept Jackson out of several games in the 2013 season. The 31-year-old Jackson has amassed 2,395 carries over his nine-year career. In 2013, his first year in Atlanta, Jackson tallied 543 rushing yards on 157 carries, for a 3.5 YPC average. Adams says that Jackson will be in the Falcons lineup for Week 1.
This news puts a damper on the theory that Jackson was primed for a comeback season. While the tone of Adams tweet was generally positive, he is also a Falcons employee. Adams has no way of knowing whether Jackson will be on the field for the Falcons to start the season, or if he'll be at 100% physically. Hamstring injuries have a nasty way of lingering. And with a back Jackson's age, any injury needs to be treated seriously. He's racked up a lot of usage in almost a decade in the NFL, and it's possible that he's reached the end of the road. Playing with nagging injuries in 2013, Jackson was largely ineffective. Bump up rookie Falcons RB Devonta Freeman a bit on your draft boards, and nudge Jackson down.