49ers rookie Fred Warner says he has formally signed his contract (Twitter link via Matt Barrows of The Sacramento Bee). With the BYU linebacker officially in the fold, the Niners have only two unsigned draft picks left in first rounder Mike McGlinchey and second rounder Dante Pettis. 
Warner, a 6’3″, 236-pound ‘backer, started all 13 games as a senior and led his team with 87 tackles. Nine of his stops were behind the line and he also notched an interception and five pass breakups. Evaluators believe that his athleticism and fluidity will allow him to occupy something of a hybrid role with reps at both outside linebacker and safety.
Warner figures to be among the first outside linebackers off of the bench behind starters Eli Harold and Reuben Foster this year. He’s one of three notable newcomers to the LB group in San Francisco, along with free agents Korey Toomer and Jerry Attaochu.
The Niners still have some work to do, but they’re hardly alone in that regard. Roughly two-thirds of teams in the NFL still have at least one rookie left to sign, as shown on PFR’s tracker.