Ya-Sin joins his fourth team in four years after previously playing for the Raiders, Ravens, and Niners over the last three seasons. The former second-round pick appeared in 13 games for the 49ers last season but appeared on just 63 defensive snaps while totaling just three tackles and two pass breakups. He’s only 28, but Ya-Sin has started just 10 of the last 38 regular season games he’s appeared in since 2022. He’s strictly a depth signing at this point, and may be best suited on special teams.

49ers cut-released OL Ben Bartch, WR Robbie Chosen, OL Chris Hubbard, DL T.Y. McGill Jr., OL Brandon Parker, TE Eric Saubert, WR Trent Taylor, TE Logan Thomas, S Tracy Walker III, DL Nick Williams, CB Rock Ya-Sin, OL Isaac Alarcon, DL Evan Anderson, DL Alex Barrett, DL Shakel Brown, DL Jonathan Garvin, LB Jalen Graham, WR Danny Gray, OL Sebastian Gutierrez, OL Jarrett Kingston, TE Cameron Latu, CB Chase Lucas, S Jaylen Mahoney, WR Tay Martin, QB Tanner Mordecai, OL Drake Nugent, TE Mason Pline, RB Cody Schrader, TE Brayden Willis, and CB Samuel Womack III.

Ya-Sin spent last season with the Ravens and wound up appearing in 14 games while making one start. He totaled 13 tackles and two pass breakups on the year while earning a PFF coverage grade of 63.8. However, he played on a career-low 279 defensive snaps—significantly less than his previous low of 592. Ya-Sin will provide nice depth to the 49ers’ secondary but is unlikely to draw many starts.

The Ravens remain at a state of relative health outside of the obvious absence of running back J.K. Dobbins and tight end Mark Andrews. A win against the Jaguars gives the Ravens a stranglehold on the top playoff seed in the AFC.