Breida left Sunday's game at Kansas City with an apparent right knee injury, Nick Wagoner of ESPN.com reports.
Like teammate Jerick McKinnon in late August, Breida seemed to suffer the injury as his leg got caught before taking any contact, and he spent time in the sideline medical tent, Nick Wagoner of ESPN.com reports. The 49ers will do their due diligence to hone in on a diagnosis, but it's a good sign that the second-year back was doing some light jogging on the sideline after he was evaluated. Nevertheless, Alfred Morris will head the backfield for the foreseeable future.