The San Francisco 49ers have a history of unearthing defensive gems, and their 2025 third-round draft pick, former Oklahoma State linebacker Nick Martin, might just be the latest treasure to shine in the NFL. With the team losing key starters, including star linebacker Dre Greenlaw to the Denver Broncos, the door is wide open for Martin to make an immediate impact and potentially claim the title of the 49ers’ best rookie this season.

A Golden Opportunity
The 49ers’ defense, long a cornerstone of their success, faces a transitional year with six rookies projected to start. Martin, selected at No. 75 overall, steps into a linebacker room that lacks depth beyond All-Pro Fred Warner. ESPN’s Nick Wagoner noted, “Martin should have an opportunity to compete for early playing time right away, given that the Niners don’t have many established veterans at linebacker outside of Fred Warner.” This lack of veteran competition sets the stage for Martin to seize a starting role, particularly at weakside linebacker, where he’ll battle third-year player Dee Winters and rookie Tatum Bethune.
Martin’s path to stardom isn’t guaranteed, but his college pedigree suggests he’s ready to rise to the challenge. At Oklahoma State, he was a defensive standout, known for his sure tackling and explosive hits. His selection by a 49ers team looking to rebuild its linebacker corps signals their confidence in his ability to translate those skills to the NFL.
Why Martin Could Be the 49ers’ Best Rookie
Several factors position Martin as a breakout candidate. First, his physicality and instincts make him a natural fit for San Francisco’s aggressive defensive scheme. During rookie minicamp, Martin showcased his ability to handle passing drills, earning praise from defensive coordinator Robert Saleh for his quick adaptation to the NFL level. His college tape highlights a player who delivers emphatic power on contact, a trait that will serve him well on special teams and as a potential starter.
Second, the 49ers’ draft strategy focused heavily on defense, with Martin joining first-round pick Mykel Williams (Georgia) and second-round pick Alfred Collins (Texas). While Williams and Collins are expected to contribute, Martin’s opportunity at linebacker—a position of immediate need—gives him a clearer path to significant snaps. If he can secure the weakside linebacker role, he could rack up tackles and make game-changing plays, putting him in contention for the team’s top rookie honors.
Finally, Martin’s versatility adds to his value. Listed as the starting slot linebacker on ESPN’s early roster, he brings flexibility to a defense that values multi-dimensional players. His speed and coverage skills, honed at Oklahoma State, allow him to handle tight ends and running backs in pass coverage, while his tackling prowess ensures he can stop the run. This combination could make him a three-down player, a rarity for a rookie.
The Road Ahead
Martin’s journey to becoming the 49ers’ best rookie won’t be without challenges. He’ll need to outperform Winters and Bethune in training camp and prove he can handle the complexities of an NFL playbook. However, the 49ers’ faith in him is evident, and his work ethic—displayed during rookie minicamp—suggests he’s ready to embrace the grind.
Oklahoma State has a proud tradition of producing NFL-caliber linebackers, with players like Malcolm Rodriguez making waves with the Detroit Lions. Martin appears poised to follow in those footsteps, potentially surpassing expectations as a third-round pick. If he capitalizes on his opportunity, he could not only shock the NFL but also become a cornerstone of San Francisco’s defense for years to come.
A Treasure Worth Watching
The 49ers may have struck gold with Nick Martin. As training camp approaches, all eyes will be on the former OSU star to see if he can live up to the hype and claim his place as the team’s rookie standout. With the right mix of opportunity, talent, and determination, Martin is poised to make waves in the NFL and prove that San Francisco has indeed found this season’s defensive treasure.