Head coach Kyle Shanahan relayed Ford dealt with calf irritation and is day-to-day, Nick Wagoner of ESPN.com reports.

EDGE Analysis

Ford tweaked his calf during one-on-one pass-rushing drills Sunday, but it's good news that he should be back soon and ready for Week 1 at the very least. The seventh-year pro was hampered by quadriceps/hamstring injuries last season and still managed 6.5 sacks through 11 games.