The Kansas City Chiefs are the last undefeated team in the NFL. Alex Smith put on another great performance and the Chiefs defense stopped young quarterback Case Keenum in his first start as they defeated the Houston Texans 17-16 to take over the top ranking this week.

With the Denver Broncos losing to Indianapolis 39-33, the Colts moved to No. 3 in the power rankings. Seattle is No. 2 after its win over the Arizona Cardinals.The Broncos dropped to No. 4 in the rankings while the New Orleans Saints remain at No. 5 after their bye week.