Jeremy Fowler of ESPN reports that tests show that Branch tore his Achilles when he was injured in Thursday night’s win over the Cowboys. It is a season-ending injury for the third-year player. Branch had 75 tackles, 2.5 sacks, a forced fumble and a fumble recovery in 12 games this season.

Brian Branch's injury could be another huge blow for a Lions secondary that already lost Terrion Arnold for the season and is without Kerby Joseph

Detroit Lions safety Brian Branch left the game in the fourth quarter with an ankle injury and left the locker room in a boot an on crutches.