At 10-4, the Seahawks control their playoff destiny and can lock up a playoff spot with a win over Arizona in prime time Sunday.
They also are now the favorites for the No. 1 seed in the NFC after Green Bay lost. If the Hawks beat Arizona and St. Louis to finish 12-4, they would win any three-way tie.
The only way they would not get the No. 1 seed by winning out is if Green Bay loses to Tampa Bay this week and Detroit loses to Chicago; in that case, the Hawks would need Dallas to lose once as well to avoid a head-to-head tiebreaker (which Seattle would lose).