Chargers safety Derwin James has been diagnosed with a stress fracture of the fifth metatarsal of his right foot, the team announced on Friday.
James will continue to be evaluated and his course of treatment has yet to be determined by Los Angeles. He was seen in a walking boot at Friday's practice after suffering the foot injury on Thursday.
NFL Network's Ian Rapoport reports James will miss "a significant amount of time."
James had a standout rookie season for the Chargers last year, where he earned All-Pro honors and a Pro Bowl bid.