Marcus Lattimore has said that he does not expect to be able to take part in training camp with the San Francisco 49ers later this month.
The running back, who was a fourth-round draft pick earlier this year, sustained a dislocated knee during his final season in college.
The 21-year-old told NFL Total Access: "I did a lot this off-season. You know, we come back in late July.
"Been running sprints, you know, got a chance to get in there with the guys a little bit, that felt good.
"Probably won't do training camp. You know, just on course with the trainer and my doctor. Get a chance to practice mid-season and see what happens."
Lattimore signed a four-year contract with the 49ers following the draft.