WATCH: DL Arik Armstead records his second sack of the day

With the Dallas Cowboys driving late in the first half towards midfield, San Francisco 49ers defensive lineman Arik Armstead beat the right tackle off a stunt to record his second sack of the day. Armstead’s sack ultimately killed the Cowboys drive.

While the anemic Cowboys offense scored 17 first-half points, the defensive line was pressuring quarterback Andy Dalton throughout much of the first half. Heading into the second, Armstead will try to add onto an already strong performance.