Okada (hamstring) didn't participate in Seattle's practice Wednesday, John Boyle of the team's official site reports.
Okada has yet to practice since the regular season got underway as he continues to nurse a hamstring injury. The 26-year-old is in danger of missing a fourth consecutive game, and AJ Finley would likely notch another start at safety if Okada is unable to play in Sunday's matchup against the Chargers.