Watch: Amari Cooper Exits Game After Brutal Hit by Darian Stewart

Amari Cooper was able to walk off the field on his own power.

Oakland Raiders wide receiver Amari Cooper was on the ground for a while after a helmet-to-helmet shot with Denver Broncos defender Darian Stewart. He was ruled out of the game with a concussion.

Cooper was able to walk off the field under his own power and was assisted on getting back to the locker room. Stewart was flagged with a roughness penalty.

Watch the hit below:

The Raiders are now down to three receiving options in Seth Roberts, Cordarelle Patterson and Johnny Holton. Michael Crabtree was ejected earlier in the game for a fight with Aquib Talib.