The San Francisco 49ers faced a setback in their running back situation as Jordan Mason re-injured his shoulder during the game against the Dallas Cowboys. With Mason sidelined for the second half, Isaac Guerendo stepped up as the lead back. The team is looking ahead to their Week 9 bye, with expectations for Christian McCaffrey's return in Week 10.
- Jordan Mason's injury raises concerns for the 49ers' backfield depth.
- Isaac Guerendo's performance as the lead back could impact future fantasy decisions.
- Christian McCaffrey's anticipated return is a positive sign for the 49ers.