Miller (hamstring) has been placed on injured reserve with a designation to return, which will force him to miss at least the first four games of the year, Sean Fazende of Fox 8 New Orleans reports.
Miller hasn't yet resumed practicing since suffering a hamstring injury at the very beginning of training camp, so it's not much of a surprise that he'll be unavailable for the start of the regular season. That could provide Jordan Mims, who led the Saints in rushing yards this preseason, a clearer path to a spot on the 53-man roster. Once officially placed on IR, Miller's first opportunity to return to action will come in Week 5 against Kansas City.