And the 49ers might need Abdullah to play in the preseason this year if James misses significant time. Without him, their running backs are Christian McCaffrey, who probably won't play in the preseason, Isaac Guerendo, who is injury-prone, and Corey Kiner, an undrafted free agent rookie. So they need bodies.

There were a few unexpected absences when the San Francisco 49ers took the field for their sixth training camp practice.

The San Francisco 49ers announced nine roster moves on Thursday afternoon ahead of another training camp practice session.