Detroit Lions defensive starters Brian Branch and DJ Wonnum were injured in the second quarter Sunday in Week 8 against the Minnesota Vikings at Ford Field in Detroit.
The two collided on the play, with both evaluated for a brain injury per the league's concussion protocol and ruled out for the rest of the game before the start of the second half.
They were trying to tackle Vikings receiver Justin Jefferson. Branch got up but Wonnum stayed down, and was eventually carted off the field after spending a few minutes on the field being checked by trainers.
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The Vikings led 7-3 at the time of the injuries and 7-6 at halftime after a DJ Reed interception for the Lions .
Fifth-round rookie Keith Abney entered in Branch's place at safety. This was Branch's second game back after Achilles surgery in December 2025.
At defensive end, the Lions have second-round rookie Derrick Moore (Michigan), who has two tackles this season.
Earlier in the game, Lions All-Pro receiver Amon-Ra St. Brown left to be evaluated for a brain injury, but he returned on the Lions' next possession.
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This article originally appeared on Detroit Free Press: Lions' Brian Branch, DJ Wonnum (concussions) out after nasty collision

