Surratt (calf) is inactive for Sunday's game against the Chargers, John Boyle of the Seahawks' official site reports.
Surratt popped up on Friday's injury report due to a calf injury, which is severe enough for him to be sidelined for Sunday's game. He's been limited to special-teams duties this season, but his absence means there will be less depth at inside linebacker for the Seahawks in Week 4.