Seattle added Chazz Surratt to bolster inside linebacker depth six days before Week 1, a move aimed at shoring up a unit that could weather rust on Jones and Knight. Surratt arrives with NFL seasoning from the Vikings, Jets, and 49ers, bringing pass-coverage versatility and special-teams value to a defense that wants a credible next-man-up option. The current roster currently hinges on Drake Thomas in the middle, with practice-squad considerations and minor OL/CB depth relief still on the radar.