First, it was Barnes, who exited with a knee injury and did not play a single snap in the second half. LaPorta followed Barnes, leaving the field via the help of a cart in the waning moments of the opening half of play.

Detroit Lions defensive back Brian Branch suffered a neck injury on a helmet-to-helmet hit and was being evaluated for a brain injury after the game.

Detroit Lions rookie cornerback Terrion Arnold returned from a knee injury in the first half. Derrick Barnes was carted off with a right knee injury.

In the first two quarters of Sunday's game against the Arizona Cardinals, which the Lions currently lead 13-7 approaching halftime, Detroit has had several players go down with apparent injuries. Cornerback Terrion Arnold and linebacker Derrick Barnes both suffered knee injuries.