The NFL season is a war of attrition in which losing key players often means the difference between making or missing the playoffs. After Week 13, there are just four remaining games on the regular-season schedule, and competition is fierce for playoff seeding.
We've already seen what losing a superstar can do to a team's playoff chances. The Green Bay Packers went from being one of the NFC's favorites to win the Super Bowl to a non-contender in the blink of an eye after Aaron Rodgers was injured.
But this isn't anything new. Injuries happen every single week in the NFL, and teams' playoff chances are ruined every single year as a result of them.
With that in mind, here's a look at the marquee players who suffered injuries on the gridiron in Week 13.