NAPA, Calif. — Chaz Schilens, projected to be one of the Oakland Raiders’ top two receivers this season, broke a bone in his left foot while running a route during Tuesday’s joint practice with the San Francisco 49ers.

Raiders coach Tom Cable didn’t provide a timeline for when Schilens might return, but such an injury would likely sideline Schilens at least a month. He has been a major bright spot in the receiving corps this training camp.
Schilens said he was uncovered when he made a cut and felt a sharp pain. He broke the fifth metatarsal in his foot and left after practice on crutches.
The 23-year-old Schilens made six starts for the Raiders during his rookie season in 2008, making 15 catches for 226 yards and two touchdowns.