With Fred Jackson's release, Anthony Dixon looked to be the primary backup to LeSean McCoy which would make him fantasy relevant. Dixon averaged 4.1 yards per carry last season with 105 carries and he should get at least that as McCoy's backup. But...
Dixon came down with a calf injury and now may be out up for a month which could allow Karlos Williams or Bryce Brown to grab the backup job and keep it. Bad luck for Dixon.
Dixon went from being irrelevant to relevant and probably back to irrelevant again within a matter of days. That's what injuries will do in the NFL. He would have not had a major fantasy impact, but in deep leagues, he would have at least secured a roster spot.