Detroit Lions defensive end Kerry Hyder was carted off during the first quarter of Sunday's preseason contest against the Indianapolis Colts, and Lions head coach Jim Caldwell said after the game he'd sustained a "significant Achilles injury," according to ESPN's Michael Rothstein.
Asked if Hyder had torn his Achilles, Caldwell said, "It's significant. The doctors, that's the initial impression. When we have something certain, we'll release it. But I'll tell you, it's significant."
While Caldwell refused to go into detail, a source told ESPN's Adam Schefter that the Lions fear Hyder tore his Achilles.
Hyder almost single-handily kept the Lions' pass-rush alive in 2016, posting a team-high eight sacks in his second NFL season.
If Hyder's injury is as serious as both Caldwell and Schefter suggested, Detroit's already weak depth on the defensive line could be stretched thin.
