A three-team tussle atop the NFC West figures to naturally play itself out by season's end.

While the San Francisco 49ers have gained an early edge with victories against fellow 5-2 rivals Los Angeles and Seattle, right tackle Colton McKivitz knows a Week 8 visit to Houston offers a unique challenge.

With injuries mounting, especially to the San Francisco defense, a banged-up attack needs to build consisten

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