As noted here and everywhere else, Seattle clinched a playoff spot with its win last night, becoming the first team in the NFL to secure a berth.
This week, Seattle can clinch the West Division with a win or a tie, one of NFC three teams that can clinch or improve its playoff standing this week.
Here are the scenarios, straight from the NFL:
CLINCHED: Seattle – playoff spot
Seattle clinches NFC West division and a first-round bye with:
1) SEA win or tie
NEW ORLEANS SAINTS
New Orleans clinches a playoff spot with:
1) NO win + PHI loss or tie + DAL loss or tie + ARI loss OR
2) NO win + PHI loss or tie + DAL loss or tie + SF loss + ARI tie
Note: If both DAL and PHI games end in a tie, Saints do not clinch.
Carolina clinches a playoff spot with:
1) CAR win + ARI loss + SF loss + PHI loss or tie + DAL loss or tie
Note: If both DAL and PHI games end in a tie, Panthers do not clinch.