Pacheco Faces 12 Weeks After Back Surgery

Detroit Lions running back Isiah Pacheco will miss a significant amount of time after back surgery to remove a loose body that was pressing on a nerve, a source told NFL Network's Ian Rapoport on Monday. The recovery is expected to take about 12 weeks, putting an early December return on the table without guaranteeing it. Head coach Dan Campbell called the timeline significant.

Dr. Robert Watkins IV performed the procedure. Pacheco was already on injured reserve since Sep 1 with an MCL sprain and the back issue from training camp, so he was already ruled out for Detroit's first four games. This update stretches the absence well past that IR minimum and into the heart of the season. CBS Sports matched the Rapoport timeline of roughly 12 weeks with an early December target, while stressing the return is not locked.

What it means for the Lions backfield

Jahmyr Gibbs remains the clear lead back. Detroit signed Pacheco in free agency to pair with Gibbs after trading David Montgomery to Houston, betting the former Chiefs runner could handle the physical between-the-tackles work. That bet is now on hold into December if the 12-week window sticks. Campbell would not nail a return date beyond saying it will be a while.

Week 2 for Detroit is Thursday Night Football at the Buffalo Bills on Sep 17. Pacheco was never in that plan after the IR move. Fantasy managers who stashed him through the four-game window need a new read: treat early December as the optimistic gate, not Week 5, and leave him on IR benches until practice reports reopen. Gibbs already carries the offense. Losing the change-of-pace complement for that long is a real snap-count shift, not a one-week tweak.

The longer injury arc

Pacheco's recent seasons have stacked medical hits, including a broken fibula that cost him a big chunk of 2024 with Kansas City. Detroit still rolled the dice on a fully guaranteed short deal. Getting almost nothing for the first three months of 2026 is the downside of that wager. Campbell already said the MCL was no longer the issue. The nerve compression in the back was.

Lions fans who wanted a thunder-and-lightning tandem behind Gibbs get Gibbs and the committee for now. Watch December for the first real activation chatter. Until then, the sourced stamp is simple: surgery done, roughly 12 weeks, significant time, and no Week 2 miracle.