What happened: Detroit Lions defensive back Brian Branch and edge rusher DJ Wonnum were ruled out with concussions during Sunday's game against the Minnesota Vikings. The two collided on a helmet-to-helmet hit while attempting to tackle receiver Justin Jefferson. Both defenders were evaluated and ruled out for the remainder of the contest.

Why it matters: The simultaneous exits strip Detroit of key starters in the secondary and front seven while Minnesota leads 7-6 in an ongoing divisional matchup. Detroit must manage defensive rotations without both contributors as the contest continues.

What to watch: Both defenders will enter the league concussion protocol ahead of Detroit's next scheduled matchup. The Lions rely on reserve depth to close out the remainder of Sunday's game.