49ers D-linemen earning impressive PFF grades compared to previous seasons
Who Were the 49ers Top Performers From 'Gritty' Win vs. Eagles?
San Francisco 49ers DT Arik Armstead out a 'few weeks' with knee sprain - ESPN
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Pro Football Focus: San Francisco 49ers DE Arik Armstead is top 5 DE
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Where the 49ers D-line landed in PFF rankings
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San Francisco 49ers defense PFF grades vs. Steelers
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Arik Armstead - Wikipedia
The 49ers offense more than carrying its weight during perfect start to the season, Sports
The 49ers offense more than carrying its weight during perfect start to the season