49ers rookie RB Marcus Lattimore (knee surgeries) says in a "best case scenario" he would return to play in Week 10. Lattimore is spending training camp on NFI and will enter the season on the same list, ruling him out for the first six games. "My best-case scenario is in Week 10 something like that," said Lattimore. "I get out there and will be full speed and ready to go." The 49ers' current plan is likely to redshirt him for the entire year, but that could change late in the season if Frank Gore goes down.