5 Things to Know: Defensive Lineman Arik Armstead
49ers' sack leader Arik Armstead not present for start of practice
The Top 5 Potential 2015 NFL Draft Busts - Arik Armstead, Defensive Line, San Francisco 49ers
49ers' Arik Armstead out at least two weeks, possibly headed to I.R.
Arik Armstead led all 3-4 defensive ends in PRP in 2016, PFF News & Analysis
Arik Armstead sent 49ers' Steve Wilks long text with full Steelers game plan – NBC Sports Bay Area & California
Bob Sturm's 2015 NFL Draft profile: What I see in Arik Armstead, DE, Oregon
Arik Armstead pokes fun at Daniel Jones after rough night - ESPN
49ers' 2019 'Who Is?' series: Defensive tackle Arik Armstead
John Lynch eager to get 'difference-maker' Arik Armstead back; Jason Verrett a wildcard for 49ers defense
49ers expect big things from twin towers Armstead and Buckner
Report: 49ers sign Arik Armstead, agree to trade DeForest Buckner to the Colts
49ers agree on a big deal with Arik Armstead, keep their defensive line intact - The Athletic
49ers, community benefit big from Arik Armstead's unselfishness