The Tennessee Titans are without starting linebacker Barrett Ruud for their game against the Buffalo Bills on Sunday. Ruud missed his second straight game because of a groin injury. Colin McCarthy starts for Ruud. Tennessee’s Tommie Campbell is also inactive because of a shoulder injury. Campbell returned a kick for a touchdown in last week’s win over Tampa Bay. Buffalo starting safety George Wilson misses his third straight game because of a neck injury. Bills receiver Naaman Roosevelt returns after missing last week’s loss to the New York Jets because of shoulder injury.