In a devastating turn of events for the San Francisco 49ers, the team has placed rookie linebacker Nick Martin on injured reserve due to a lingering concussion, casting a shadow over their playoff push just ahead of a crucial Monday Night Football clash with the Indianapolis Colts. The move, announced on Saturday, effectively sidelines the third-round draft pick for the remainder of the regular season, dealing a harsh blow to the team’s depth at a pivotal moment.
Martin’s injury woes began on November 30 during the 49ers’ game against the Cleveland Browns, where he suffered the concussion early in the contest. What started as a seemingly routine setback has persisted, keeping him in the NFL’s concussion protocol for weeks. Head coach Kyle Shanahan provided insight into the unpredictable nature of Martin’s symptoms earlier this week, telling The Athletic’s Matt Barrows: “If you have a headache or standing up and you get dizzy, I’m not getting in particulars with him, but light could hurt you randomly one time, and once that happens and then it’s a step back.”
Under current NFL rules, any player placed on injured reserve must miss a minimum of four games before being eligible to return. With only three weeks left in the regular season, this timeline means Martin is out until at least the postseason—if the 49ers advance that far. The decision to move him to IR now opens up a valuable roster spot for San Francisco, providing much-needed flexibility as they navigate a banged-up linebacker corps. However, it also underscores the severity of Martin’s condition, transforming what could have been a week-to-week recovery into a long-term absence.
Selected No. 75 overall out of Oklahoma State in the 2025 NFL Draft, Martin was expected to make an immediate impact, particularly on special teams. True to form, the rookie has logged 74 special teams snaps across seven appearances this season, far outpacing his 15 defensive snaps, according to CBS Sports. His role in the kicking game has been crucial, and his absence could force the 49ers to reshuffle their units at a time when every play counts in the race for playoff positioning.
The timing couldn’t be worse for Shanahan’s squad. The 49ers are gearing up for a high-stakes road game against the Colts on December 22, with postseason implications hanging in the balance. San Francisco’s front seven has been plagued by injuries throughout the year, turning the linebacker room into a revolving door of availability. Shanahan has repeatedly addressed these health concerns in recent press sessions, highlighting the challenges of pushing toward the finish line with a depleted unit.
While Martin’s primary contributions have been on special teams, his potential as a defensive depth piece made him a promising building block for the future. The IR designation not only halts his rookie campaign but also raises questions about his recovery trajectory. If the 49ers opt to designate him for return—a process that would allow him to practice and potentially play in the playoffs—his progress over the next few weeks will be critical. For now, though, the focus shifts to the rest of the roster stepping up in his absence.
This injury blow comes as the 49ers fight to secure their spot in January’s playoff picture. With the regular season winding down, every roster move carries amplified weight, and losing a young talent like Martin adds pressure to an already intense stretch. Fans and analysts alike will be watching closely to see how San Francisco adapts, starting with Monday’s showdown in Indianapolis. As the team battles through adversity, one thing is clear: the road to the postseason just got a little rockier.