The Packers drafted running backs in bulk a year ago, hoping something would work.

Now, they’re wondering if one of them will work again.

According to Rob Demovsky of ESPN.com, the Packers are concerned that running back Johnathan Franklin might have a career-threatening neck injury.

Last year’s fourth-rounder from UCLA hasn’t practiced this offseason, and according to the report, the Packers are “putting Franklin through more tests to determine whether it’s safe for him to continue playing.”