Kyle Shanahan previews 49ers' Week 4 matchup vs. Patriots

Greg Papa sits down with Kyle Shanahan to look ahead to the 49ers' matchup against the Patriots and discuss Brock Purdy's evolution, how Jauan Jennings consistently gets separation, and how San Francisco can get it's season back on track against New England. Also, Matt Maiocco and Carlos Ramirez discuss who's to blame for the defensive struggles.

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