Miller is in contention for the Patriots' No. 3 running back role, Mike Reiss of ESPN.com reports.
Lead candidate Terrell Jennings (undisclosed) was placed on injured reserve Thursday, increasing Miller's odds of securing the No. 3 role. Miller has been battling Lan Larison for second-team reps in training camp, and both players, along with Hassan Haskins and JaMycal Hasty, will continue to compete for the opportunity to serve as the primary backup to the top duo of Rhamondre Stevenson and TreVeyon Henderson.