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San Francisco 49ers defense depth chart for Week 1
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How the 49ers have built a modern defense around linebacker Fred
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49ers sign star linebacker Fred Warner to huge new contract
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Fred Warner steps up as leader of 49ers defense
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Linebacker Fred Warner helps steady banged-up 49ers' defense
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Tag: FRED WARNER – NBC Bay Area
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Why 49ers' recent history suggests Fred Warner's contract talks
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Fred Warner laments poor defense as 49ers fall to Vikings
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49ers' Fred Warner has signature game in blowout of Cowboys