San Francisco 49ers running back Christian McCaffrey is unlikely to practice this week due to an Achilles injury, and head coach Kyle Shanahan expressed doubt about his availability for the upcoming game against the Cowboys. However, there is hope that McCaffrey could return after the team's Week 9 bye. The possibility of placing him on injured reserve is also being considered, which would sideline him for at least four games.

• McCaffrey is unlikely to play this week and may return after the bye.
• Jordan Mason will continue as the lead running back in McCaffrey's absence.