Power Rankings: No. 4 Seattle Seahawks

A weekly examination of the Seahawks' ESPN.com Power Ranking:

Preseason: 1 | Last Week: 4 | ESPN.com Power Ranking since 2002

The Seattle Seahawks' defense had its most impressive performance of the season in a 34-22 victory at Arizona on Thursday night, and the Denver Broncos lost for the first time, but neither of those things was enough for Seattle to move up in the power rankings.

The Seahawks remain at No. 4, but it shouldn't come as a big surprise. Kansas City tops the rankings as the league's only unbeaten team. The Indianapolis Colts, the team that handed Seattle its only loss, are No. 2, and the Broncos fell from first to third after losing to the Colts on Sunday night.

However, the Seahawks are the top-ranked team in the NFC, one notch above the New Orleans Saints. The Seattle defense is a big reason for it, recording a season-high seven sacks among eight players and holding the Cardinals to only 30 yards rushing.

Arizona did not have a drive of more than 26 yards until late in the fourth quarter after the game was decided. Ten points for the Cardinals came after Seattle quarterback Russell Wilson fumbled deep in Seahawks territory when he was pressured in the pocket.

Those fumbles were the only things Wilson did wrong on a night when he did a lot of things right. He threw three touchdown passes and didn’t throw an interception, completing 18 of 29 passes for 235 yards and ending the night with a 122.1 passer rating.

Marshawn Lynch rushed for 91 tough yards, and we do mean tough, because 80 of those yards came after contact.