John takes a DEEP DIVE in "Upon Further Review" as we dig into the stats of the 4-0 49ers start

In Hour 1, John takes a closer look at the San Francisco 49ers' impressive winning streak when they have 30 or more rushes, a stat that's been a key factor in their success under Kyle Shanahan's leadership. They also examine Brock Purdy's impressive performance in the red zone, where he's been nearly flawless this season. And, in a surprising twist, they reveal some surprising stats about the NFL's most penalized week in 11 years.

But it's not all about the 49ers - our host also discusses the Seattle Seahawks' struggles on offense and defense, and how their decision to not sign veteran running back Joe Mixon may have benefited the 49ers. Plus, they explore the Seahawks' vulnerabilities on defense and how the 49ers may be able to exploit them.

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