What it means: Seattle's 14-game home winning streak ends, and the Seahawks fail to clinch the NFC West title or home-field advantage in the playoffs. Seattle (12-3) will have another shot at it next weekend. This was the first home loss for the Seahawks since the final home game of the 2011 season.
Stock watch: Just an old-school defensive smackdown. Both defenses were dominant. Neither team scored a touchdown until the fourth quarter. The Seahawks had four interceptions, and the Cardinals held Seattle to only 192 total yards and 89 yards passing.
Ball insecurity for Turbin: Backup running back Robert Turbin had replaced Jermaine Kearse earlier this season on kickoff returns, a decision coach Pete Carroll said he made for "ball-security reasons." That didn't work out well Sunday when Turbin fumbled without being touched on a return in the second half. He also fumbled on an earlier return, but the review showed he was down before the ball came loose. Receiver Doug Baldwin replaced Turbin in the fourth quarter and had a 37-yard return on his first attempt.
Interception kings: The Seahawks now have 26 interceptions for the season and nine in the past two games. Richard Sherman had two picks, giving him a league-best eight interceptions, which just may propel him past teammate and free safety Earl Thomas for NFL defensive player of the year honors.
What's next: In what it hoped would be a meaningless game and a chance to rest some starters, Seattle ends the regular season at home against the St. Louis Rams in a must-win to guarantee home-field advantage and win the division title.