NFL Network's Alex Flanagan reports Chargers SS Steve Gregory (thigh) is inactive for Thursday night's game against the Raiders. Gregory injured himself in Wednesday's practice. Pro Football Focus grades Gregory as slightly below average in coverage and against the run. Veteran Paul Oliver will fill in opposite Eric Weddle, with rookie Shareece Wright providing depth. Also inactive for the Bolts in Week 10: WR Malcom Floyd, OLB Shaun Phillips, WR Bryan Walters, OG Kris Dielman, DE Vaughn Martin, and LB Darryl Gamble.