Kyle Shanahan previews 49ers' Week 8 matchup vs. Dak Prescott, Cowboys

Kyle Shanahan sits down with Greg Papa to preview the 49ers' matchup with the Dallas Cowboys and discuss San Francisco's wide receiver group after Brandon Aiyuk's injury. Also, Matt Maiocco is joined by Cris Collinsworth and Carlos Ramirez to discuss Brock Purdy's performance and which players will need to step up on Sunday.