NFL rumors: 49ers restructure Arik Armstead's contract, have $41.5M in cap space – NBC Sports Bay Area & California
49ers, Arik Armstead agree to five-year contract - ESPN
Niners Nation: Watch out for these NorCal natives on the field
49ers place Arik Armstead on COVID-19 list
Former Oregon Duck Arik Armstead named the San Francisco 49ers' nominee for the 2020 Walter Payton NFL Man of the Year award
49ers' Arik Armstead has two sacks in win over Packers
Arik Armstead Looks Forward to Playing Future with DeForest Buckner
49ers DE Arik Armstead Raises Awareness for Education and Equality – NBC 5 Dallas-Fort Worth
Notes: Arik Armstead carrying the torch for his brother - The Boston Globe