The 49ers haven’t had a sack in over a month. Good news is the Seahawks are up next.

The Seattle’s signing of Marshawn Lynch to bolster their depleted backfield has helped obscure its larger offensive issue: The Seahawks’ injury-riddled offensive line, which has allowed the seventh-most sacks in the NFL, was particularly bad in pass protection in a 27-13 loss to the Cardinals on Sunday.

It won’t matter if Lynch, 33, has a turn-back-the-clock performance if the Seattle line can’t do a better job of keeping its most important player upright – quarterback Russell Wilson.

When asked what gave him hope that Seattle’s front five would be improved against the 49ers on Sunday night, Seattle head coach Pete Carroll adopted a sarcastic tone.

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