The Raiders have placed linebacker Sio Moore on the Physically Unable to Perform list with a hip injury. Moore suffered a hip injury late last season and had offseason surgery to repair it.
The third year linebacker had practiced on a limited basis in minicamp last month and it the hope was he would be ready to go to begin training camp. There's no way of knowing exactly how long he will be on the PUP list, but based on his progress in the offseason, I wouldn't suspect it would be too long.
Ray Ray Armstrong has primarily filled in at weak side linebacker in Moore's absence.