The Jets' two big running back additions did not practice today. Chris Ivory is battling a hamstring ailment. "It’s limitation just precaution. I don’t want to come back and make things worse’’ said Ivory who sounded like he’d rather go through a root canal or an IRS audit than discuss another injury. Asked when he’d practice he said: “Probably not tomorrow. We’re going to see how it feels tonight and come back tomorrow see how it feels and after that I should be OK probably by Sunday. Or tomorrow.’ It does not sound like much to get worried about. Considering Ivory's injury history and the pounding at the position it probably would make sense for the Jets to keep his camp workload light and hold him out of preseason games. Save his bullets for the regular season.