49ers Mailbag: Is there a weakness in the San Francisco defense?
Arik Armstead led all 3-4 defensive ends in PRP in 2016
San Francisco 49ers Draft Needs for 2023
49ers news: 5 Niners were named in the Top 10 players on defense
49ers: Power ranking the 5 best position groups entering 2019
49ers news: ESPN ranks each position on the 49ers' defense; says
San Francisco 49ers: Where PFF ranks the Niners offensive and
49ers Sign DL Arik Armstead to Five-year Extension
49ers defense playing at Super Bowl level
Ranking the 49ers by positional strength after the 2021 NFL Draft
Where the 49ers D-line landed in PFF rankings
2023 NFL Free Agency: Javon Hargrave strengthens San Francisco
The reason the 49ers will use a Wide 9 defense in 2019