49ers signed Stanford ILB Shayne Skov.
Skov (6-foot-2 1/8, 245) made 48 starts in the Cardinal’s 3-4, racking up 40.5 tackles for loss with 17 sacks. He was a third-team All-American as a senior. Skov’s short arms (30 5/8") and below-average athleticism (5.09 forty, 31-inch vertical) will likely keep him off the field in sub-packages, but NFL Films’ Greg Cosell believes Skov could succeed in a James Farrior/Larry Foote-type role at strong-side inside linebacker in a 3-4. He’s an instinctive, smart (34 Wonderlic score), high-effort run stopper and deceptively good blitzer. Shaky medicals and pre-draft workouts caused him to go undrafted.