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Colin E. Braley, AP
Kansas City Chiefs quarterback Alex Smith (11) passes to a teammate during the first half of an NFL football game against the Houston Texans at Arrowhead Stadium in Kansas City, Mo., Sunday, Oct. 20, 2013.

As is the case with every NFL season in history, as the weeks go on, the number of undefeated teams remaining in the league shrink more and more.

Week seven was no different.

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The Denver Broncos lost their first game of the season leaving the Kansas City Chiefs as the only undefeated team left in the NFL.

The same case applies to the winless teams in the NFL. Normally as the season progresses, the list of winless teams shortens. With the New York Giants winning their first game of the season Monday, the Jacksonville Jaguars and Tampa Bay Buccaneers are the last two winless teams.

With everything from intriguing match-ups to season-ending injuries, week seven had a bit of everything to make football fans cheer and jeer.

With that said, here are the best and worst of week seven in the NFL.

You can follow Mitch Kunzler on Twitter at @MitchKunzler.