Let's argue: Arik Armstead is the best player on the 49ers defensive line - Niners Nation
How the 49ers defense shut down Aaron Rodgers and the Packers - Niners Nation
Can 49ers Defensive Line Maintain League-leading Dominance Despite Changes?
Pro Football Focus ranks 49ers' defensive line as NFL's fourth-best
2022 Training Camp Preview: Defensive Line
'A nightmare for opposing defenses': Where the 49ers stand in Week 9 power rankings after rout of Rams
Dominant and deep: 49ers' defensive line at the core of team's turnaround
San Francisco 49ers: Where PFF ranks the Niners offensive and defensive lines among all NFL teams. - Niners Nation
49ers' D-lineman Arik Armstead picking ideal time for breakout season - ESPN - San Francisco 49ers Blog- ESPN
49ers place defensive lineman Arik Armstead on Reserve/COVID-19 List
Javon Kinlaw, Javon Hargrave and Arik Armstead: Inside the 49ers' DT surge - The Athletic
Where 49ers' Arik Armstead ranks among top defensive tackles by coaches, execs – NBC Sports Bay Area & California
49ers' Arik Armstead nearing first-round potential with improved play down the stretch, NFL News, Rankings and Statistics