With their 23-17 win over the Cleveland Browns, the Kansas City Chiefs became the 21st team since the start of the Super Bowl era (1966 NFL season) to start the season 8-0. The Atlanta Falcons in 2012 started the season 8-0, but eventually lost in their ninth game of the year, a 31-27 defeat at the hands of the New Orleans Saints. Two teams, the 1972 Miami Dolphins and the 2007 New England Patriots, went through their seasons undefeated.
So, will the Chiefs join the Dolphins and Patriots with an undefeated season? If not, who will be the first to defeat them in 2013?