Tatum Bethune and Sam Okuayinonu will miss the San Francisco 49ers' game vs. the Tennessee Titans, meanwhile Christian McCaffrey is good to go.

Through 12 weeks, there had not been much reason to be concerned with third-round rookie Nick Martin’s lack of playing time. However, with the San Francisco 49ers recent signing of Eric Kendricks, it may finally tell us that the team is not high on what Martin has done so far.

While the 49ers clearly have embraced a youth movement with a handful of rookies playing significant snaps on defense, third-round draft pick Nick Martin has been noticeably absent. San Francisco defensive coordinator Robert Saleh revealed Martin's lack of ...

Meanwhile, the 49ers are set to get some much-needed reinforcements on run defense, and Ricky Pearsall's status for Week 16 is unclear.

Just 24 hours before their Week 15 matchup vs. the Tennessee Titans, the San Francisco 49ers got a concerning update on Christian McCaffrey.

The San Francisco 49ers have elevated two players from the practice squad to bolster their defense in Sunday's Week 15 game vs. the Tennessee Titans.

The middle linebacker opted to sign with Dallas instead of San Francisco last season, but it's all worked out great for both parties.