Pacheco (shoulder) won't play Sunday against the Bills, Matt McMullen of the Chiefs' official site reports.
According to Matt Derrick of ChiefsDigest.com, Pacheco is dealing with a bruise to the same shoulder that he underwent surgery on shortly after the Super Bowl this past season. Though the Chiefs are ruling Pacheco out only for Week 14 at this time, Reid was non-committal regarding whether the injury will be anything that will force the running back to injured reserve, per Pete Sweeney of ArrowheadPride.com. Reid told Charles Goldman of AtoZSports.com that Clyde Edwards-Helaire will be the "No. 1 guy" out of the backfield Sunday, though Jerick McKinnon will likely handle most of the passing-down work while occasionally spelling Edwards-Helaire for carries.