Each year, the NFL season is a war of attrition. Teams that lose the most key players struggle to survive. Teams fortunate enough to keep their players healthy enhance their chances of an extended season.
But two weeks from the start of the season, some teams already have suffered key injuries. Here are the five biggest injuries so far, and how those teams will be impacted:
To read Adam Schefter's list of the preseason's most impactful injuries, plus his thoughts on the Chiefs' chances for the playoffs this season, why there's no faith in Arizona QBs and the financial ramifications of the Revis holdout, you must be an ESPN Insider.