Arik Armstead (69) probably will start on the defensive line when the 49ers open the season Sept. 12 against the Rams.
Arik Armstead (69) probably will start on the defensive line when the 49ers open the season Sept. 12 against the Rams. Tony Avelar The Associated Press
Arik Armstead (69) probably will start on the defensive line when the 49ers open the season Sept. 12 against the Rams. Tony Avelar The Associated Press