Matt Lively reports on three things that will help the San Francisco 49ers seal a sweep over the Seattle Seahawks on Sunday.

Don’t expect the San Francisco 49ers to take their foot off the gas in their usage of running back Christian McCaffrey. McCaffrey returned in Week 10 after missing the first nine weeks to work through Achilles tendinitis. It stood to reason that his usage might start slow and then ramp up.

The season debut of Christian McCaffrey helped make the San Francisco 49ers' offense look more like it did a year ago than it did in an up-and-down first half of the season. McCaffrey's presence helped create space in the passing game for the rest of San Francisco's playmakers,